Math, asked by ap29v8898, 9 months ago

2/7(14x2-21 2) (-5x2-3y2) simplify​

Answers

Answered by melumalaivaralakshmi
3

I think this is your question

2/7(14x^2-21y^2) (-5x^2-3y^2)

Answer for this question is

2/7×7(2x^2-3y^2)(-5x^2-3y^2)

=2(2x^2-3y^2)×(-5x^2-3y^2)

=(4x^2-6y^2)(-5x^2-3y^2)

= -20x^4-12x^2y^2+30x^2y^2+18y^4

= -20x^4-18x^2y^2+18y^4

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