Answer:
Step-by-step exAnswer:(-2, 2)
Explanation:
7q² - 28 = 0
Add 28 to bothside
7q² - 28 + 28 = 0+ 28
7q² = 28
Divide bothside by 7
7q² / 7 = 28/7
q² = 4
Take the square root of bothside
√q² = ±√4
q = ± 2
q = -2 or q =2
q = (-2, 2)
The answer is 26.55
I hope this helps
5.2m questions
6.8m answers