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How do you factor 9x squared plus 25?
9x2 + 25 has no rational factors. Its factorisation in the complex domain is:(3x + 5i)*(3x - 5i) where i is the imaginary square root of -1.
What value of x satisfies the equation 2x plus 5 plus 3x equals 25?
2x + 5 + 3x = 25 5x + 5 = 25 Subtract 5 from both sides: 5x = 20 Divide both sides by 5: x = 4
How do you work out what x and y are equal to using x squared plus y squared equals 25 and y equals 3x plus 1?
since y = 3x+1 we have y squared =(3x+1) squared x^2 + y^2 = 25 x^2 + (3x+1)^2=25 x^2 + 9x^2+ 6x+1 = 25 10x^2 + 6x + 1 = 25 10x^2 + 6x -24 = 0 solve x from quadratic formula x = 1.28 y = 3x + 1 = 4.83
What is the x 3x plus 5 equals 20?
3x + 5 = -20. First, subtract 5 from both sides of the equation: 3x + 5 - 5 = -20 - 5; and simplify: 3x = -25. Then divide both sides by 3: 3x / 3 = -25 / 3; and simplify: x = -8 1/3 (or -8.33)
What is 3x plus (-2 plus 4x)?
3x + (-2 + 4x) = -2 + 7x
Differentiate 3x plus 25?
d/dx (3x+25)=3
What is 3x plus 5 times 3x plus 5?
9x2 + 30x + 25
What does x equal in 10-3x plus 8x equals 25?
10 -3x+8x = 25 -3x+8x = 25-10 5x = 15 x = 3
What is 8x-23 equals 3x plus 2?
8x - 23= 3x + 2 +23 +23 8x=3x + 25 -3x -3x 5x=25 x=5 the answer is X=5
What is the answer to -2x to the 4 plus 16 plus 2x to the 4 plus 9-3x to the 5?
-2x^4+16 +2x^4+9-3x^5=-3x^5+25. There is no "answer" because there is no equation.
What is -3x plus -18 equals 2x plus 7?
-3x + (-18) = 2x + 7 +18 +18 -3x = 2x +25 -2x -2x -5x = 25 ----- ----- -5 -5 x=-5 *------- equals a division line
What is 8x-4equlals 3x plus 21?
If: 8x-4 = 3x+21 Then: 8x-3x = 21+4 => 5x = 25 => x = 25/5 Therefore: x = 5
What is the expression of 9x to the secound power minus 30x plus 25?
That can be factored to (3x - 5)(3x - 5) or (3x - 5)2
What is 10-3x plus 8x equals 25?
x = 3
How do you you factor completely x to the fourth power plus x squared plus 25?
(x^2 - 3x + 5)(x^2 + 3x + 5)
Solve 3x plus 7 equals 25?
25-7=18 18/3=6
-3x plus 7 equals 2x-18?
-3x+7=2x-18 ---> 7+18=2x-3x ----> 25=5x ----> x=5
