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Find and simplify the expression if f(x)=x^2-12?

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find and simplify the expression if f(x)=x^2-12

f(4x)=

simplify your answer

functions

asked Jun 14, 2014 in GEOMETRY by anonymous

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1 Answer

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The function f (x) = x ²-12.

Plug 4x in place of x in the the function f (x).

f (4x) = (4x)²-12

= 16x²-12

= 4(4x²- 3).

Therefore, f (4x) = 4(4x²- 3).

answered Jun 14, 2014 by lilly Expert

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