Answer:
x^2-2x-13
Step-by-step explanation:
f(x) = 2x-5
g(x) = x^2 -4x-8
f(x) +g(x) = 2x-5 + x^2 -4x-8
Combine like terms
= x^2+2x-4x-5-8
=x^2-2x-13
70 + 78 + 91 = 239
239 - 42 - 36 = 161
Answer:x=2 y=3
Step-by-step explanation:
Answer:
Step-by-step explanation: