Factor
x\left(13x+12y\right)
Evaluate
x\left(13x+12y\right)
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x\left(4x+12y+9x\right)
Factor out x.
13x+12y
Consider 4x+12y+9x. Multiply and combine like terms.
x\left(13x+12y\right)
Rewrite the complete factored expression.
13x^{2}+12xy
Combine 4x^{2} and 9x^{2} to get 13x^{2}.
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