0
Add your answer:
Earn +20 pts
Why does x equal to 8 and 0 in x2 equals 8x?
x2 = 8xx2- 8x = 0x(x - 8) = 0x = 0 ;x - 8 = 0x = 8
What are the roots of the quadratic equation x2 - 14x plus 45 equals 0?
x2-14x+45=0(x-9)(x-5)=0x-9=0 & x-5=0x=9 & x=5
Solve x2 - x equals 20?
-18
What is the point of intersection of y equals 2x-x2 and y equals 0?
y = 2x - x2y = 0Since both quantities on the right side are equal to 'y', they're equal to each other.2x - x2 = 0x (2 - x) = 0x = 0and2 - x = 0x = 2The two points of intersection are (0, 0) and (2, 0) .
Solution for the inequality x2 - 5x plus 6 0 is?
x2 - 5x + 6 = 0(x - 2) (x - 3) = 0x - 2 = 0 5 × 69 or x - 3 = 0x = 2 or x = 3
X2-10x plus 25 equals 0?
x2 - 10x + 25 = 0(x - 5)(x - 5) = 0x - 5 = 0x = 5
What does x2-5x equals 0?
x2 - 5x = 0x (x - 5) = 0x = 0andx = 5
Why does x equal to 8 and 0 in x2 equals 8x?
x2 = 8xx2- 8x = 0x(x - 8) = 0x = 0 ;x - 8 = 0x = 8
What are the roots of the quadratic equation x2 - 14x plus 45 equals 0?
x2-14x+45=0(x-9)(x-5)=0x-9=0 & x-5=0x=9 & x=5
X²-7x plus 12 equals 0?
x2-7x+12 = 0 (x-3)(x-4) = 0x=3,4
X2 plus 3x plus 3 equals 7?
x2 + 3x + 3 = 7Subtract 7 from each side:x2 + 3x - 4 = 0Factor the left side:(x + 4) (x - 1) = 0x = - 4x = +1
X2-x plus 3 equals 0?
x2 - x + 3 = 0x = [1 +/- sqrt(1-12)]/2 = [1 +/- i*sqrt(11)]/2 where i is the imaginary square root of -1.
X squared plus 2x - 15 equals 0?
x2 + 2x - 15 = 0(x + 5) (x - 3) = 0x = -5x = +3
X squared minus 5x equals 0?
x2 - 5x = 0Factor the left side:x (x - 5) = 0x = 0x = 5
What X2 plus 7x minus 120 equals 0?
Factorise: (x - 8)( x + 15) = 0x - 8 = 0 or x + 15 = 0, so x = 8 or -15Check: 64 + 56 = 120 OK; 225 - 105 = 120 OKJob done.
X squared-7x plus 6 equals 0?
x2 - 7x + 6 = 0(x - 6)(x - 1) = 0x = 6, x = 1
How do you solve x2 plus 4 equals 4x?
Rearrange: x2 - 4x + 4 = 0Factorise: (x - 2)(x - 2) = 0x = 2Check: 4 + 4 = 4 x 2? Sure does, job done.
