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Please do this.. Properly step by step.. If you do u will be blessed. In a sheet of paper. |
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Answer» Step-by-step explanation: 6.) {(2ab+bc+3ac)+(-7ab-bc+6ac)}-(12ab+ac+8bc) =(2ab+bc+3ac-7ab-bc+6ac-12ab-ac-8bc) =(-17ab-8bc+8ac)[ANS.] 7.) A=3xy+7xz,B=-4xy+2xz,C=-10xz-2xy-yz .°.2(A+B)-C =2(3xy+7xz-4xy+2xz)-(-10xz-2xy-yz) =2(9xz-xy)-(-10xz-2xy-yz) =18xz-2xy+10xz+2xy+yz =28xz+yz =z(28x+y)[Ans.] |
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