Question

What are the solutions to the equation x² = 169? Choose all answers that are correct. A. 13 B. –13 C. 84.5 D. –84.5

Answer 1

The answers are A. 13, and B. -13.

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Explanation:

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Answer 2

`x^(2) = 169`

First, we need to take the square root of each side.

`x = \pm \sqrt169`

Second, we now have to find the square root of 169 to solve this. Since 13 × 13 = 169, the square root of 169 is 13. The plus-minus symbol means in this case, the solution can be -13 and positive 13. To answer your question, option A) 13, and B) -13 are the solutions to the equation.

`x = \pm 13`

Answer:
`\pm13`