Question

Check all that apply. 4x² - 81 = 0 A. B. D. T C. 9 E. gle 1 Nia GIN F. -9​

Answer 1

x = 9/2 = 4.5

Explanation:

`4x ^(2) - 81 = 0 \\ 4 {x}^(2) = 0 + 81 \\ 4 {x}^(2) = 81 \\ {x}^(2) = (81)/(4) \\ x = \sqrt{ (81)/(4) } \\ \boxed{x= (9)/(2)} \\ \boxed{x = 4.5}`

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hope this helps!