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bagirrra123 [75]
4 years ago
5

Solve the equation using square roots. 2x2 = 242 A)=±121 B)±11 C)11 D)no real number soltutions

Mathematics
2 answers:
natita [175]4 years ago
8 0
2x^2=242

x^2=121

x=±11
kupik [55]4 years ago
4 0

Answer:

Option B is correct

\pm 11

Step-by-step explanation:

Given the equation:-

2x^2 = 242

Divide both sides by 2 we have;

x^2 = 121

Taking square root  both sides we have;

\sqrt[2]{x^2} =\pm \sqrt{121}

We can write 121 as:

121 = 11^2

then;

\sqrt[2]{x^2} =\pm \sqrt{(11)^2}

Simplify:

x = \pm 11

Therefore, the solution for the given equations is, \pm 11

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