-16x2 + x + 8 = -1/64(32x - 1 - √513)(32x - 1 + √513)
4x3 + 16x2 - 180x = 4x(x2 + 4x - 45) = 4x(x + 9)(x - 5)
(4x + 7)(16x2 - 28x + 49)
(x+1)(x+8)
(x + 5)(x + 8)
y = -16x2 + 342At the x-intercepts, y=0-16x2 + 342 = 016x2 = 342x2 = 342/16 = 21.375x = plus and minus sqrt(21.375) = approx. plus and minus 4.6233 (rounded)
(x + 8)(x + 1)
Yes, and this is how. 16 x 2 - 9 16x2=32, 32 - 9 =23, so 23 is your answer! Good Question!
(x + 4)(x + 8)
-((x + 2)(x - 8))
x2 + 6x + 8 = (x + 4)(x + 2)
x2 + 8x = x(x+8)
x2 + 6x + 8 =(x + 2)(x +4)