Your answer can only be simplified to
256x^10 - 384^8 - 448^6
Answers for A:
Factored form: (x-2)(x+4)
Zeros: x = 2, -4
Vertex: (-1, -9)
Answers for B:
Factored form: -(x+2)(x+7)
Zeros: x = -2, -7
Vertex: (-9/2, 25/4)
You subtract 7% from 32=29.76
Then you subtract 8% from 29.76=27.379
If we make his age equal to x, the. We can set up the equation X=4(x-15)