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damaskus [11]
3 years ago
6

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

Mathematics
2 answers:
Sonbull [250]3 years ago
8 0

Answer:9/2 and -9/2

Step-by-step explanation:

i just did it

seropon [69]3 years ago
3 0

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}

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