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Lelechka [254]
4 years ago
15

The solution to 2x2 – 11 = 87 is

Mathematics
2 answers:
frozen [14]4 years ago
6 0

\text{Solve the equation:}\\\\2x^2-11=87\\\\\text{Add 11 to both sides}\\\\2x^2=98\\\\\text{Divide both sides by 2}\\\\x^2=49\\\\\text{Square root:}\\\\x=\pm\sqrt49\\\\\text{This means that the answer could be 7 or -7}\\\\\boxed{\text{x=7 or x= -7}}

Sloan [31]4 years ago
5 0

Answer:

it would be a 7 or -7

Step-by-step explanation:

i just did it

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Step-by-step explanation:

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