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2x *2x=1,5^2

 Sep 7, 2017
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Solve for x:
4 x^2 = 2.25

Rewrite the right-hand side of the equation.
2.25 = 9/4:
4 x^2 = 9/4

Divide both sides by a constant to simplify the equation.
Divide both sides by 4:
x^2 = 9/16

Eliminate the exponent on the left-hand side.
Take the square root of both sides:
x = 3/4                 or                   x = -3/4

 Sep 7, 2017

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