Question

Which equation represents the standard form of the equation? y= (x+3)^2-8

A. y = x2 + 6x - 8
B. y = x2 + 3x + 1
C. y = x2+ 3x - 8
D. y = x2 + 6x + 1

Answer 1

`y=x^2+6x+1`

Explanation:

`y= (x+3)^2-8`

`\left(x+3\right)^2`

`x^2+2x\cdot \:3+3^2`

Multiply 2*3=6

`x^2+6x+3^2`

`3^2=9`

`x^2+6x+9`

`x^2+6x+9-8`

Subtract 9 - 8=1

`x^2+6x+1`

OAmalOHopeO

Answer 2

D. y=x2+6x+1 :) hope this helps