Answer:
f(x) = 3x² + 6x + 3
Step-by-step explanation:
The standard form of a quadratic is [tex]ax^2 + bx + c[/tex]. To write the equation f(x)=-3(x+1)(x+1) in standard form, multiply the factors using the distributive property and combining like terms.
f(x)=-3(x+1)(x+1)
f(x) = 3(x²+x+x+1)
f(x) = 3x² + 3x + 3x + 3
f(x) = 3x² + 6x + 3
