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(2x-y)²+5(2x-y)-300 |
Answer» (2x-y)^2=(4x^2)-(4xy)+(y^2)5(2x-y)=10x-5y[(2x-y)^2]+[5(2x-y)]-300(4x^2)-(4xy)+(y^2)+10x-5y-300 |
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