Question

solve the pair of simultaneous equations: y=8-x, 2x^2+xy=-16

Answer 1

The first step is to substitute the given value of y into the equation\[2x ^{2}+xy=-16\]
Can you do that?

Answer 2

no

Answer 3

\[2x ^{2}+x(8-x)=-16\]
Now you need to remove the brackets by multiplying each term inside the brackets by x.

Answer 4

still don't understand

Answer 5

no
what is that

Answer 6

12+x

Answer 7

ok