-((x + 2)(x - 8))
-x2 + 6x + 16 = -(x2 - 6x - 16) = -(x - 8)(x + 2) = -(8 - x)(x + 2)
6x-14x+16=27+11 answer: 4
8x + 16 = 6x -> 2x + 16 = 0 -> 2x = -16 -> x = -8
2
2.6
y=6x-16 y=-2x+8
(x^2 - 6x + 18)(x^2 + 6x + 18)
x=4
-((x + 2)(x - 8))
(X + 5)(X + 1) FOIL this. X2 + 1X + 5X + 5 Gather terms. X2 + 6X + 5 ----------------------------those were the factors
What are the factors? 2x3 - 8x2 + 6x = 2x(x - 1)(x - 3).
x2 + 6x = 16=> x2 + 6x - 16 = 0=> x2 + 8x -2x - 16 = 0=> (x+8)(x-2) = 0=> x = -8 or x = 2So, the solutions of the quadratic equation x2 + 6x = 16 are -8 and 2.