f(x)=(5x+11)(2x+9)

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Solution for f(x)=(5x+11)(2x+9) equation:


Simplifying
f(x) = (5x + 11)(2x + 9)

Multiply f * x
fx = (5x + 11)(2x + 9)

Reorder the terms:
fx = (11 + 5x)(2x + 9)

Reorder the terms:
fx = (11 + 5x)(9 + 2x)

Multiply (11 + 5x) * (9 + 2x)
fx = (11(9 + 2x) + 5x * (9 + 2x))
fx = ((9 * 11 + 2x * 11) + 5x * (9 + 2x))
fx = ((99 + 22x) + 5x * (9 + 2x))
fx = (99 + 22x + (9 * 5x + 2x * 5x))
fx = (99 + 22x + (45x + 10x2))

Combine like terms: 22x + 45x = 67x
fx = (99 + 67x + 10x2)

Solving
fx = 99 + 67x + 10x2

Solving for variable 'f'.

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

Divide each side by 'x'.
f = 99x-1 + 67 + 10x

Simplifying
f = 99x-1 + 67 + 10x

Reorder the terms:
f = 67 + 99x-1 + 10x

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