F(x)=x^2+7x

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Solution for F(x)=x^2+7x equation:


Simplifying
F(x) = x2 + 7x

Multiply F * x
xF = x2 + 7x

Reorder the terms:
xF = 7x + x2

Solving
xF = 7x + x2

Solving for variable 'x'.

Reorder the terms:
-7x + xF + -1x2 = 7x + x2 + -7x + -1x2

Reorder the terms:
-7x + xF + -1x2 = 7x + -7x + x2 + -1x2

Combine like terms: 7x + -7x = 0
-7x + xF + -1x2 = 0 + x2 + -1x2
-7x + xF + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-7x + xF + -1x2 = 0

Factor out the Greatest Common Factor (GCF), 'x'.
x(-7 + F + -1x) = 0

Subproblem 1

Set the factor 'x' equal to zero and attempt to solve: Simplifying x = 0 Solving x = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x = 0

Subproblem 2

Set the factor '(-7 + F + -1x)' equal to zero and attempt to solve: Simplifying -7 + F + -1x = 0 Solving -7 + F + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + F + 7 + -1x = 0 + 7 Reorder the terms: -7 + 7 + F + -1x = 0 + 7 Combine like terms: -7 + 7 = 0 0 + F + -1x = 0 + 7 F + -1x = 0 + 7 Combine like terms: 0 + 7 = 7 F + -1x = 7 Add '-1F' to each side of the equation. F + -1F + -1x = 7 + -1F Combine like terms: F + -1F = 0 0 + -1x = 7 + -1F -1x = 7 + -1F Divide each side by '-1'. x = -7 + F Simplifying x = -7 + F

Solution

x = {0, -7 + F}

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