f(x)=(7x+1)(5x-7)

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Solution for f(x)=(7x+1)(5x-7) equation:


Simplifying
f(x) = (7x + 1)(5x + -7)

Multiply f * x
fx = (7x + 1)(5x + -7)

Reorder the terms:
fx = (1 + 7x)(5x + -7)

Reorder the terms:
fx = (1 + 7x)(-7 + 5x)

Multiply (1 + 7x) * (-7 + 5x)
fx = (1(-7 + 5x) + 7x * (-7 + 5x))
fx = ((-7 * 1 + 5x * 1) + 7x * (-7 + 5x))
fx = ((-7 + 5x) + 7x * (-7 + 5x))
fx = (-7 + 5x + (-7 * 7x + 5x * 7x))
fx = (-7 + 5x + (-49x + 35x2))

Combine like terms: 5x + -49x = -44x
fx = (-7 + -44x + 35x2)

Solving
fx = -7 + -44x + 35x2

Solving for variable 'f'.

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

Divide each side by 'x'.
f = -7x-1 + -44 + 35x

Simplifying
f = -7x-1 + -44 + 35x

Reorder the terms:
f = -44 + -7x-1 + 35x

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