QUESTION 1 (3 points) Solve the following equation. Show all work. 4x² - 5 = 76

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asked Nov 27, 2021 189k views

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QUESTION 1 (3 points)
Solve the following equation. Show all work.
4x² - 5 = 76

Mathematics
middle-school

Andreyunugro asked

by Andreyunugro

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2 Answers

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Answer:

$x_(1) =-(9)/(2) \\x_(2) = (9)/(2)$

Explanation:

$4x^2 = 76 + 5\\4x^2 = 81\\x^2 = (81)/(4)\\ x = |(9)/(2)|$

Cjds answered Nov 29, 2021

by Cjds

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Answer:

X = 9/2

Explanation:

4x² - 5 = 76

4x² = 76 + 5

4x² = 81

4x² = 9²

(2x)² = 9²

2x = 9

X = 9/2

Mike Andrews answered Dec 1, 2021

by Mike Andrews

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