You should search it up on Photomath is easier
Answer:
4√7
Step-by-step explanation:
5√7 + √7 - 2√7
Taking out common term, √7.
= √7 ( 5 + 1 - 2)
Simplify the terms in the bracket.
= √7 (4)
= 4 √7
= -1/9 im pretty sure is the answer
Step-by-step explanation:
f(5) = 2(5) = 10
hope this helps