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Solve quadratic equations by taking the square root

Solve quadratic equations having real solutions by inspection and by taking square roots. Based on high school Common Core standard A-REI.B.4b and TEKS Algebra I standard 8A, gr...

The equation x^2= 25 has

only one solution. two positive solutions. one positive and one negative solution.
he complete solution set for x^2 = 100 is

x = 10. x = 50. x = 10 or x = −10. x = 50 or x = −50.
The solutions to (x + 2)^2 = 4 are

x = 0 and x = 4 x = 0 and x = −4 x = −4 and x = 4 x = −2 and x = 2
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