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Qusetion: Solve the given quadratic equations by finding appropriate square roots as in Example.
X2 = 25
Example: Quadratic equation solutions
In solving x2 = 16 we may write x2 - 16 = 0 and complete the solution by factoring. This gives usx = 4 and x = -4. Therefore, the principal square root of 16 and its negative both satisfy the original equation. Thus, we may solve x2 = 16 by equating x to the principal square root of 16 and to its negative. The roots of x2 = 16 are 4 and -4 We may solve (x - 3)2 = 16 in a similar way by equating x - 3 to 4 and to -4.
x - 3 = 4 or x - 3 = -4
a large health maintenance organization is interested in the prescribing patterns of physicians. suppose that we
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