Factor. $$ x^{2}+3 x y-18 y^{2} $$

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Factor the expression $$ x^{2}+3x*y-18y^{2} $$.
Factor the expression by following steps:
- step0: Factor:
  $$x^{2}+3xy-18y^{2}$$
- step1: Rewrite the expression:
  $$x^{2}+\left(-3+6ight)xy-18y^{2}$$
- step2: Calculate:
  $$x^{2}-3xy+6yx-18y^{2}$$
- step3: Rewrite the expression:
  $$x	imes x-x	imes 3y+6yx-6y	imes 3y$$
- step4: Factor the expression:
  $$x\left(x-3yight)+6y\left(x-3yight)$$
- step5: Factor the expression:
  $$\left(x+6yight)\left(x-3yight)$$
The factored form of the expression $$x^{2}+3x*y-18y^{2}$$ is $$(x+6y)(x-3y)$$.
The expression $$ x^{2}+3x*y-18y^{2} $$ factors to $$ (x+6y)(x-3y) $$.

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