Question

xy (3x^2-2y^2)-yz(2y^2-3x^2)+zx(15x^2-10y^2)

Answer 1

Hope u like my process.
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--> xy(3x² - 2y²) - yz(2y² - 3x²) +zx(15x² - 10y²)

= xy(3x² - 2y²) +yz( 3x² - 2y²) +5zx(3x² - 2y²)
[taking - 1 common from the term multiplied with yz]

= (3x² - 2y²){xy +yz +5zx}
[ taking (3x² - 2y²) common from all terms]

= (3x² - 2y²)(xy +yz+ 5zx)

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Hope this is ur required answer
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