Answer:
This alot but ill help you with 2 of them to learn em
Step-by-step explanation:
1) 2x^2 +5 =167
Subtract the 5 from both sides to get the equation 2x² = 162
Then divide the 2 from both sides to get x² = 81, Then square root from both sides to get x= 9
6) 2(2y +4)²=72
Divide 2 from both sides to get (2y+4)²=36
Then square root that to get 2y+4 = 6
subtract 4 from both sides to get 2y =2
Then divide both sides from 2. Y=2
