Answer:
Explanation:
Find all real solutions of the equation. ( 2 b + 4 ) 2 − 12 = 0
( 2 b + 4 ) 2 − 12 = 0
4b + 8 - 12 = 0
4b - 4 = 0
4b = 4
b = 1
-------------------
check
(2*1+4)*2-12=0
12 - 12 = 0
0 = 0
the answer is good
3.3m questions
4.2m answers