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42 votes
42 votes
What is the answer to
f(x)=-3x^2-20

User Shubham Baranwal
by
2.7k points

2 Answers

22 votes
22 votes
x = -6 hope this helps
User David Castillo
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3.6k points
20 votes
20 votes


\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* ( -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}

User Xin Cheng
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2.9k points