16.
8x2 DUH
8x2 + 16x + 8 = 0
15 = 8x2 - 14x; whence, 8x2 - 14x - 15 = (2x - 5)(4x + 3) = 0. Therefore, x = 5/2 or -3/4.
8 and 2 8x2=16
x=5
8x2-2x-15 = 0 (2x-3)(4x+5) = 0 x = 3/2 or x = -5/4
2(4x^2 - 7x + 5)
4
0.0625 or 1/(8x2) also known as 1/16
8x2 + 16x + 8 = 8*(x2 + 2x + 1) = 8*(x + 1)2
You can multiply 8x2 or if you can put addition into the equation you can do (3+5)x2! If you need proof here it is 8x2 can be shown as 8+8 Which equals 16.