f(g(x))=(x^2+6x)(4x^2)

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Solution for f(g(x))=(x^2+6x)(4x^2) equation:


Simplifying
f(g(x)) = (x2 + 6x)(4x2)

Multiply g * x
f(gx) = (x2 + 6x)(4x2)

Multiply f * gx
fgx = (x2 + 6x)(4x2)

Reorder the terms:
fgx = (6x + x2)(4x2)

Remove parenthesis around (4x2)
fgx = (6x + x2) * 4x2

Reorder the terms for easier multiplication:
fgx = 4x2(6x + x2)
fgx = (6x * 4x2 + x2 * 4x2)
fgx = (24x3 + 4x4)

Solving
fgx = 24x3 + 4x4

Solving for variable 'f'.

Move all terms containing f to the left, all other terms to the right.

Divide each side by 'gx'.
f = 24g-1x2 + 4g-1x3

Simplifying
f = 24g-1x2 + 4g-1x3

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