x² = 28
x = √28
Factoring 28
28 | 2
14 | 2
7 | 7
1
28 = 2.2.7 = 2².7
x = √2².7
x = 2√7
Answer:
5 or -5
Step-by-step explanation:
3+2=5
-1(3+2)=-5