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katrin2010 [14]
3 years ago
13

Please help! 4x(5y-x)-5y(4x-y)

Mathematics
2 answers:
Andreas93 [3]3 years ago
8 0
<span>4x(5y-x)-5y(4x-y)=20xy-4x^2-20yx+5y^2=-4x^2+5y^2=5y^2-4x^2</span>
Anvisha [2.4K]3 years ago
6 0
= 4x(5y-x) - 5y(4x-y)
= 20xy-4x²- 20xy+5y²
= -4x²+5y²
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