Question

Which statement(s) true when solving the equation for x ? CHOOSE TWO.

x2=81144


(2 points)

You would use the inverse operation of dividing both sides by 2

You would use the inverse operation of square root

You would use the inverse operation of multiplying both sides by itself

You would use the inverse operation of dividing both sides by 4

There is no solution for x in this equation.

there would be one solution for x;

x = 81/72 = 9/8


there would be two solutions for x;

x = 9/12 = +3/4 and x = - 9/12 = - 3/4


there would be one solution for x;

x = 9/12 = 3/4


there would be two solutions for x;

x = 81/72 = 9/8 and x = - 81/72 = -9/8

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Answer 1

Correct choices:

- You would use the inverse operation of square root.
- There would be two solutions for x; x = 9/12 = +3/4 and x = -9/12 = -3/4.

Reason: x^2 = 81/144, so x = ±sqrt(81/144) = ±(9/12) = ±3/4.