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How do you factor x squared plus x minus one half?
(x^2+x-1/2)= x(x+1)-1/2 [x + (1 - square root of 3)/2][x + (1 + square root of 3)/2] = 0 Check it: x^2 + x/2 + (square root of 3)x)/2 + x/2 + 1/4 + (square root of 3)/4 - (square root of 3)x/2 - (square root of 3)/4 - 3/4 = 0 x^2 + x/2 + x/2 + [(square root of 3)x]/2 - [(square root of 3)x]/2 + (square root of 3)/4 - (square root of 3)/4 + 1/4 - 3/4 = 0 x^2 + x - 2/4 = 0 x^2 + x - 1/2 = 0 How to find this roots: Using the completing the square method: x^2 + x - 1/2 = 0 x^2 + x = 1/2 x^2 + x + 1/4 = 1/2 + 1/4 (x + 1/2)^2 = 3/4 x + 1/2 = (plus & minus)(square root of 3/4) x = -1/2 + (square root of 3)/2 x = - 1/2 - (square root of 3)/2
Which two values of x are roots of the polynomial 3x2-3x plus 1?
let f(x) = 3x^2 - 3x + 1. The roots of f is the same as asking for x where f(x) = 0. So we do it f(x) = 0, 3x^2 - 3x + 1 = 0. Using "complete the square" method 3(x^2 - x) + 1 = 0 3(x^2 + (2 . - 1/2 . x) + (-1/2)^2 -(-1/2)^2) + 1 = 0 3(x - 1/2)^2 -3/4 + 1 = 0 3(x - 1/2)^2 + 1/4 = 0 By the quadratic formula, the solution comes out to be x = [3+√(-3)]/6 and x = [3-√(-3)]/6 or x = (3+i√3)/6 and x = (3-i√3)/6 in other words, the solutions are complex numbers.
X over 2 plus 3 equals 4?
-1
What is 2 430 090 in expanded form?
2,430,090 = (2 x 106) + (4 x 105) + (3 x 104) + (0 x 103) + (0 x 102) + (9 x 101) + (0 x 100) or (2 x 1000000) + (4 x 100000) + (3 x 10000) + (0 x 1000) + (0 x 100) + (9 x 10) + (0 x 1)
X2 - x - 6?
-4
Solve x 3-2x 2 plus x-4 0?
The answer to the math problem x 3-2x 2 plus x-4 0 is 0.
How do you factor x squared plus x minus one half?
(x^2+x-1/2)= x(x+1)-1/2 [x + (1 - square root of 3)/2][x + (1 + square root of 3)/2] = 0 Check it: x^2 + x/2 + (square root of 3)x)/2 + x/2 + 1/4 + (square root of 3)/4 - (square root of 3)x/2 - (square root of 3)/4 - 3/4 = 0 x^2 + x/2 + x/2 + [(square root of 3)x]/2 - [(square root of 3)x]/2 + (square root of 3)/4 - (square root of 3)/4 + 1/4 - 3/4 = 0 x^2 + x - 2/4 = 0 x^2 + x - 1/2 = 0 How to find this roots: Using the completing the square method: x^2 + x - 1/2 = 0 x^2 + x = 1/2 x^2 + x + 1/4 = 1/2 + 1/4 (x + 1/2)^2 = 3/4 x + 1/2 = (plus & minus)(square root of 3/4) x = -1/2 + (square root of 3)/2 x = - 1/2 - (square root of 3)/2
What is the solution of x2 plus x plus 1 equals 0?
x2 + x + 1 = 0 ∴ x2 + x + 1/4 = -3/4 ∴ (x + 1/2)2 = -3/4 ∴ x + 1/2 = ± √(-3/4) ∴ x = - 1/2 ± (i√3) / 2 ∴ x = (-1 ± i√3) / 2
How do you factor to solve x2-x equals 6?
-4
What is 243090 in expanded?
243,090 = (2 x 100000) + (4 x 10000) + (3 x 1000) + (0 x 100) + (9 x 10) + (0 x 1) OR (2 x 10^5) + (4 x 10^4) + (3 x 10^3) + (0 x 10^2) + (9 x 10^1) + (0 x 10^0)
How do you factor x square plus one?
(x^2+x-1/2)= x(x+1)-1/2 [x + (1 - square root of 3)/2][x + (1 + square root of 3)/2] = 0 Check it: x^2 + x/2 + (square root of 3)x)/2 + x/2 + 1/4 + (square root of 3)/4 - (square root of 3)x/2 - (square root of 3)/4 - 3/4 = 0 x^2 + x/2 + x/2 + [(square root of 3)x]/2 - [(square root of 3)x]/2 + (square root of 3)/4 - (square root of 3)/4 + 1/4 - 3/4 = 0 x^2 + x - 2/4 = 0 x^2 + x - 1/2 = 0 How to find this roots: Using the completing the square method: x^2 + x - 1/2 = 0 x^2 + x = 1/2 x^2 + x + 1/4 = 1/2 + 1/4 (x + 1/2)^2 = 3/4 x + 1/2 = (plus & minus)(square root of 3/4) x = -1/2 + (square root of 3)/2 x = - 1/2 - (square root of 3)/2
What is 0 x 1 x 2 x 3 x 4 x 5?
It is 0
Could youFind a positive that equals to 12 when added to its square?
x+x^2 = 12 x^2+x-12=0 (x+4)(x-3)=0 X = -4 or 3 Answer is 3. CHECK YOUR ANSWER: 3 + 3^2 = 3+9 = 12
What the answer to 2 out of 3 plus x equals 4 out of 6?
2/3 +x= 4/6 4/6+x=4/6 x=0
What is the solution for 2x2 plus x minus 1 and equal zero?
2 x 2 + x - 1 = 0 4 + x - 1 = 0 4-1 + x = 0 3 + x = 0 3 + x - 3 = 0 - 3 x = -3 ---------- Another Solution Method (including text) for: 2 * 2 + x - 1 = 0 1. Do simple operations (*/+-) within from left to right: 2 * 2 + x - 1 = 0 4 + x - 1 = 0 3 + x = 0 2. Group like terms: - move numerical terms from the left side of the equal sign to the right side of the equal sign (remember to change the sign when moving from the left to the right of the equal sign): 3 + x = 0 x = 0 - 3 3. Do simple operations (^*/+-): x = 0 - 3 x = - 3
The expanded form of 3024?
(3 x 103) + (0 x 102) + (2 x 101) + (4 x 100) OR (3 x 1000) + (0 x 100) + (2 x 10) + (4 x 1).
How do you solve 3x squared plus 10x- 8 equals 0?
3x2 + 10x - 8 = 0 3x2 + 12x - 2x - 8 = 0 3x(x + 4) - 2(x + 4) = 0 (3x - 2)(x + 4) = 0 So 3x - 2 = 0 or x + 4 = 0 so x = 2/3 or x = -4
