Question

Please need help asapp!

solve the equation using the square root method.

x2 = 36?

select all solutions that apply.

1) 6
2) 8
3) -6
4) -8

Answer 1

1) 6

3) -6

Explanation:

You want to solve the equation x² = 36 by the square root method.

Square root method

This method finds the solution by taking the square root of both sides of the equation.

`x^2=36\\\\√(x^2)=√(36)\\\\|x|=6\qquad\text{positive square root}\\\\x=\pm6`

The solutions are x = 6 and x = -6.

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Additional comment

We often "cut to the chase" and write the result of taking the square root as x = ±√36 = ±6. It is worth noting that the square root symbol indicates the positive square root. That's what the absolute value bars also indicate: the positive value of the number.

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