Substitute 2x + 3y = 5
x^2 + xy - 2y^2 = 10

Please help with this question

yE iTs (-5x-2y=10)

-7/8

step-by-step explanation:

instead of subtracting you add the -6/8 and -1/8

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

rearrange these functions vertically, with like terms in separate columns:

f(x) = 5x^3 - 2

g(x) =         +1

now subtract, column by column:

(f - g)(x) = 5x^3 - 3