Answer:
u^2 +7u -8=0 where u = 3x+2
Step-by-step explanation:
(3x+2)^2 + 7(3x+2) - 8=0
Let 3x+2 = u
u^2 +7u -8=0
X has infinity solutions.
Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
in step 4, he subtracted the wrong direction