Answer:
<u>b = -4, 0</u>
Step-by-step explanation:
<u>Given</u> :
<u>Take b as a common factor.</u>
<u>Solutions</u>
- b = 0
- b + 4 = 0 ⇒ b = -4
- <u>b = -4, 0</u>
Answer:
7.33
Step-by-step explanation:
(2√5 + 3(√7))^2
(2√5 + 3(√7))(2√5 + 3(√7))
4*5 + 6√35 + 6√35 + 9*7
20 + 12√35 + 63
20 + 63 + 12√35
83 + 12√35