Answer:
Its D please mark Brainliest.
Step-by-step explanation:
16x4 + 16x – 16x – 64
16x4 – 8x – 8x – 64
(4x2 + 8)(4x2 – 8)
16(x2 + 2)(x2 – 2)
The input have to be -9 to get output 214 with the rule y=-15x+79
x is the input, y is the output so:
214 = -15x + 79
214 - 79 = -15x
15x = -135
x = -9