Math, asked by ItzurAngel, 2 months ago

(3x-y)(x+3y)+[3ysquare-3xsquare]​

Answers

Answered by Eline75
38

 \huge \mathfrak  \red{question}

(3x-y)(x+3y)+(3y²-3x²)

 \huge \mathfrak \color{pink}{answer}

Let's simplify step-by-step.

 \sf \red{(3x−y)(x+3y)+3y^2−3x^2}

 \sf  \color{green}{Distribute:}

 \sf \red{=(3x)(x)+(3x)(3y)+(−y)} \\  \sf \red{(x)+(−y)(3y)+3y²+−3x²}

=3x²+9xy+−xy+−3y²+3y²+−3x²

 \sf Combine \:  Like \:  Terms:

=3x²+9xy+−xy+−3y²+3y²+−3x²

=(3x2+−3x²)+(9xy+−xy)+(−3y²+3y²)

 \sf \red{answer : 8xy}

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