Question

Xy2z2+3x2y2z-4x2y2,-9x2y2z+3xy2z2+x2yz2

Answer 1

$\blue{\bf{xy^2z^2 + 3x^2y^2z - 4x^2yz^2 +}}$$\pink{\bf{ - 9x^2y^2z + 3xy^2z^2 + x^2yz^2=}}$$\red{xy^2z^2 -}$ $\green{\bf{4x^2yz^2 + 3x^2y^2z + x^2yz^2 -}}$$\blue{\bf{ 4x^2yz^2 - 9x^2y^2z =}}$$\red{\bf{4xy^2z^2 - 6x^2y^2z - 3x^2z^2}}$

Answer 2

Answer:

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