Question

ADD THE FOLLOWING EXPRESSIONS:

1)9ax, 3by – cz, -5by + ax + 3cz

2)Xy2z2 + 3x2y2z – 4x2yz2, -9x2y2z + 3xy2z2 + x2yz2

3)5x2 - 3xy + 4y2 – 9, 7y2 + 5xy – 2x2 + 13

4)3a(a – b + c), 2b(a – b + c)

Answer 1

Hwya mate....

1)

9ax+3by-cz+ax+3cz-5by

=10ax-2by+2cz

2)Xy^2z^2 + 3x^2y^2z – 4x^2yz^2 -9x^2y^2z + 3xy^2z^2 + x^2yz^2

=4xy^2z^2-6x^2y^2z-3x^2 y z^2

3)5x2 - 3xy + 4y2 – 9+7y2 + 5xy – 2x2 + 13

=3x^2+11y^2+2xy+4

4)3a(a – b + c)+ 2b(a – b + c)

=3a^2 -3ab+3ac + 2ab-2b^2 +2bc

=3a^2- 2b^2 +2bc+3ac-ab

@skb

Answer 2

Answer:

Step-by-step explanation:

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