Question

Which equation represents the standard form of the equation y=(x+3)^2-4

A. y = x^2 + 3x - 4
B. y = x^2+ 6x - 4
C. y = x^2 + 3x + 5
D. y = x^2 + 6x + 5

Answer 1

Answer: y=x^2+6x+5 ==> D

Explanation:

y=(x+3)^2-4

y=(x+3)(x+3)-4

y=x*x+3*x+3*x+3*3-4

y=x^2+3x+3x+9-4

y=x^2+6x+5 ==> D