Question

Rewrite the function f(x)=-3(x+3)^2-13
in the form f(x)=ax^2+bx+c

Answer 1

-3x^2-18x-40

Explanation:

-3(x+3)^2-13

-3(x^2+6x+9)-13

-3x^2-18x-27-13

-3x^2-18x-40

Answer 2

-3x^2-18x-40

Explanation:

(x+3)^2: x^2+6x+9

= -3(x^2+6x+9)-13

Expand:

-3(x^2+6x+9): -3x^2-18x-27

= -3x^2-18x-27-13

Final Answer: -3x^2-18x-40