f(x)=(x+7)(x+2)

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Solution for f(x)=(x+7)(x+2) equation:


Simplifying
f(x) = (x + 7)(x + 2)

Multiply f * x
fx = (x + 7)(x + 2)

Reorder the terms:
fx = (7 + x)(x + 2)

Reorder the terms:
fx = (7 + x)(2 + x)

Multiply (7 + x) * (2 + x)
fx = (7(2 + x) + x(2 + x))
fx = ((2 * 7 + x * 7) + x(2 + x))
fx = ((14 + 7x) + x(2 + x))
fx = (14 + 7x + (2 * x + x * x))
fx = (14 + 7x + (2x + x2))

Combine like terms: 7x + 2x = 9x
fx = (14 + 9x + x2)

Solving
fx = 14 + 9x + x2

Solving for variable 'f'.

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

Divide each side by 'x'.
f = 14x-1 + 9 + x

Simplifying
f = 14x-1 + 9 + x

Reorder the terms:
f = 9 + 14x-1 + x

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