ensiah193 ensiah193

31-08-2020
Mathematics

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Let f(x)=x^2−4x. Solve f(x)=−4.

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xx0assassin0xx xx0assassin0xx

31-08-2020

Answer:

( x + 2) ( x - 2 )

Step-by-step explanation:

f(x) = x^2 -4x

-4 = x^2 - 4x

0 = x^2 - 4x + 4

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

( x + 2) ( x - 2 )

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