5x² - 18x + 9 = (5x² - 15x) - (3x - 9)
= 5x(x - 3) - 3(x - 3)
= (5x - 3)(x - 3).
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5x2-18x+9 = (5x-3)(x-3)
(5x - 3)(x - 3)
3x3+15x2+18x = 3x(x2+5x+6) = 3x(x+2)(x+3)
15x2 + 58x + 48= 15x2 + 18x + 40x + 48= 3x(5x + 6) + 8(5x + 6)= (3x + 8)(5x + 6)
X2+5x-6. a=1, b=5, and c=-6 The formula is: -b plus or minus the square root of b squared minus 4ac all over 2a. -b+square root of b2-4ac ---- 2a -5 plus or minus the square root of 5 squared minus 4(1)(-6) -5 plus or minus the square root of 25-4(-6) -5 plus or minus the square root of 25+24 -5 plus or minus the square root of 49 -5 plus or minus 7 Here is where you split into two different answers: Number 1: -5 plus 7= 2 Number 2: -5 minus 7= -12 Your answer is X=2, -12