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Let f(x)=x^2−4x. Solve f(x)=−4.
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Let f(x)=x^2−4x. Solve f(x)=−4.

User Deltap
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1 Answer

5 votes

Answer:

( x + 2) ( x - 2 )

Explanation:

f(x) = x^2 -4x

-4 = x^2 - 4x

0 = x^2 - 4x + 4

0 = ( x + 2) ( x - 2 )

( x + 2) ( x - 2 )

User BytesGuy
by
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