9x2 - 18x + 99(x2 - 2x + 1)==========
3x(6x - 1)
-5 + 12x = 18x + 7Subtract 7 from each side:-12 + 12x = 18xSubtract 12x from each side:-12 = 6xDivide each side by 6:-2 = x
The 'answer' is the number that 'x' has to be in order to make the statement true.18x + 3 = 12xSubtract 3 from each side of the equation:18x = 12x - 3Subtract 12x from each side:6x = -3Divide each side by 6 :x = - 1/2
As written, that's 3x^3 - 12x which factors to 3x(x - 2)(x + 2)
(x + 2)(3x - 1)(3x + 1)
gcf(12x, 18x²) = 6x
9x2 - 18x + 99(x2 - 2x + 1)==========
3x(6x - 1)
-2, 1.74 and 0.46
-5 + 12x = 18x + 7Subtract 7 from each side:-12 + 12x = 18xSubtract 12x from each side:-12 = 6xDivide each side by 6:-2 = x
3x3+15x2+18x = 3x(x2+5x+6) = 3x(x+2)(x+3)
The 'answer' is the number that 'x' has to be in order to make the statement true.18x + 3 = 12xSubtract 3 from each side of the equation:18x = 12x - 3Subtract 12x from each side:6x = -3Divide each side by 6 :x = - 1/2
As written, that's 3x^3 - 12x which factors to 3x(x - 2)(x + 2)
12x - 28 = 18x - 88Put the variables on one side and the constants on the other by subtracting 12x from both sides and adding 88 to both sides. 12x - 12x - 28 + 88 = 18x - 12x - 88 + 88 Simplify 60 = 6x Divide both sides by 6 x = 10 If you want to check your answer, which is always a good idea, plug in 10 for x in the original expression and see if you get a true statement: 12(10) - 28 = 18(10) - 88 120 - 28 = 180 - 88 92 = 92
12x2 - 28x - 15= 12x2 - 18x - 10x - 15= 6x(2x - 3) - 5(2x - 3)= (6x - 5)(2x - 3)
The GCF is 6x^3.