HelpingAddison HelpingAddison

11-03-2021
Mathematics

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

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jessicasyasya jessicasyasya

11-03-2021

Answer:

9/2

Step-by-step explanation:

[tex]4 {x}^{2} = 81 \\ {x}^{2} = \frac{81}{4} \\ x = \frac{ \sqrt{81} }{ \sqrt{4} } \\ x = \frac{9}{2} [/tex]

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uwishuwerenik uwishuwerenik

20-03-2021

Answer:9/2 and -9/2

Step-by-step explanation:

i just did it

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