Math, asked by sarmisthasohan, 2 months ago

(3x^2-xy+y^2)(3x^2+xy-y^2)​

Answers

Answered by adtyk
1

Step-by-step explanation:

(3x²+xy-y²)(3xy-xy+y²)

=(3x²+xy-y²)[3x²-(xy-y²)]

It is of the form (a+b)(a-b)

Here a=3x² and b=xy-y²

Result is a²-b²

=(3x²)²-(xy-y²)²

=9x⁴-(x²y²+y⁴-2xy³)

=9x⁴+y⁴+2xy³-x²y²

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