Question

Simplyfy (5-xy) (3-xy)

Answer 1

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$(5 - xy)(3 - xy) \\ = 5(3 - xy) - xy(3 - xy) \\ = 15 - 5xy - 3xy + x {}^{2} y {}^{2} \\ = x {}^{2} y {}^{2} - 8xy + 15$
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Answer 2

ANSWER :
_________

( 5 - xy ) ( 3 - xy )

=> 15 - 5 xy - 3 xy - x ²y ²

=> 15 - 8 xy - x²y²

=> x²y² - 8 xy + 15.