trinda1 trinda1

09-06-2020
Mathematics

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

Respuesta :

williamd5 williamd5

09-06-2020

Answer:

[tex]x_{1} =-\frac{9}{2} \\x_{2} = \frac{9}{2}[/tex]

Step-by-step explanation:

[tex]4x^2 = 76 + 5\\4x^2 = 81\\x^2 = \frac{81}{4}\\ x = |\frac{9}{2}|[/tex]

Answer Link

09-06-2020

Answer:

X = 9/2

Step-by-step explanation:

4x² - 5 = 76

4x² = 76 + 5

4x² = 81

4x² = 9²

(2x)² = 9²

2x = 9

X = 9/2

Answer Link

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