Solve 9(2x – 3)2 + 7 = 448. Question 4 options: A) x = 5, –2 B) x = –5, 2 C) x = 5, 0 D) x = ±5

asked Aug 20, 2022 220k views

2 votes

Solve 9(2x – 3)2 + 7 = 448.

Question 4 options:

A)

x = 5, –2

B)

x = –5, 2

C)

x = 5, 0

D)

x = ±5

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5 votes

Answer: A

Explanation:

$9(2x-3)^2 + 7=448\\\\9(2x-3)^2 = 441\\\\(2x-3)^2 = 49\\\\2x-3 = \pm 7\\\\2x=3 \pm 7\\\\x=(3)/(2) \pm (7)/(2)=\boxed{-2, 5}$

Dillan answered Aug 20, 2022

8.1k points

6 votes

Answer:

x = 5, –2

Explanation:

TMilligan answered Aug 25, 2022

7.7k points

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