ammi251
ammi251
25-02-2018
Mathematics
contestada
Please help!
4x(5y-x)-5y(4x-y)
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Anonym061
Anonym061
25-02-2018
4x(5y-x)-5y(4x-y)=20xy-4x^2-20yx+5y^2=-4x^2+5y^2=
5y^2-4x^2
Answer Link
AinZulkifli
AinZulkifli
25-02-2018
= 4x(5y-x) - 5y(4x-y)
= 20xy-4x²- 20xy+5y²
= -4x²+5y²
Answer Link
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