Question

Please do this.. Properly step by step.. If you do u will be blessed. In a sheet of paper.

Answer 1

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.]

Answer 2

Answer:

6) -17ab+8ac-8bc

7)-4xy+28xz+yz

Step-by-step explanation:

please refer to the above attachment and excuse me for my handwriting...

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