Answer: for the question 2 I gave you the step by step explanation in the picture so you can probably better understand where you did wrong , I hope it will be helpful for you, have a nice rest of your day:)
Answer:
see explanation
Step-by-step explanation:
(f + g)(x)
= f(x + g(x)
= x² + 1 + 5 - x ← collect like terms
= x² - x + 6
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(f - g)(x)
=f(x) - g(x)
= x² + 1 - (5 - x)
= x² + 1 - 5 + x ← collect like terms
= x² + x - 4
