3 years ago

The solution to 2x2 – 11 = 87 is

Mathematics

2 answers:

Ilia_Sergeevich [38]3 years ago

7 0

2x^2 - 11 = 87
2x^2 = 87 + 11 = 98
x^2 = 98/2 = 49
x = sqrt (49) = + or - 7

grandymaker [24]3 years ago

7 0

The answer will be A. 7 or -7.

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