Question

pls solve this question pls

and I will mark as brainliest and give you thanks
and spam or i will report your answer​

Pls don't spam

Answer 1

(a) ax+ by+ cz

= (-2 x 1)+(1x-1)+(-2x2)

= (-2)+(-1)+(-4)

= -7

(b) ax²+ by²+ cz²

=(-2x1x1)+(1x-1-x1)-(-2x2x2)

=(-2)+1-(-8)

=7

(c)axy+ byz+ cxz

=(-2x1x-1)+(1x-1x2)+(-2x1x2)

=2+(-2)+(-4)

=-4