Question

what is the answer to
f(x)=-3x^2-20

Answer 1

x = -6 hope this helps

Answer 2

$\huge \boxed{\mathfrak{Question} \downarrow}$

• What is the answer to $\sf \: f ( x ) = - 3 x ^ { 2 } - 20$

$\huge \boxed{\mathfrak{Answer} \downarrow}$

$\large \boxed{ \bf \: - 6x}$

$\huge \boxed{\mathfrak{Explanation} \downarrow}$

$\large \sf \: f ( x ) = - 3 x ^ { 2 } - 20$

• The derivative of a polynomial is the sum of the derivatives of its terms. The derivative of a constant term is 0. The derivative of $\sf \: ax^{n}$ is $\sf \: nax^{n-1}$.

$\large \sf \: 2\times ( -3x)^{2-1}$

• Multiply 2 times - 3.

$\large \sf \: - 6x^{2-1}$

• Subtract 1 from 2.

$\large \sf \: - 6x^{1}$

• For any term t, t¹ = t.

$\large \boxed{ \bf \: - 6x}$