Question

Which of the following are solutions to the equation below? check all that apply 4x^2-81=0

Answer 1

Answer:9/2 and -9/2

Step-by-step explanation:

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Answer 2

Answer:

9/2

Step-by-step explanation:

$4 {x}^{2} = 81 \\ {x}^{2} = \frac{81}{4} \\ x = \frac{ \sqrt{81} }{ \sqrt{4} } \\ x = \frac{9}{2}$