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Taking the n th Root to Solve Equations. Chapter 7.1. Recall: Solving Quadratic Equations by Taking the Square Root of Each Side. Examples: Solve each equation. x 2 = 49 ( x – 1) 2 = 64 3x 2 = 27. Taking the n th Root of each side.
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Taking the nth Root to Solve Equations Chapter 7.1
Recall: Solving Quadratic Equations by Taking the Square Root of Each Side Examples: Solve each equation. • x2 = 49 • (x – 1)2 = 64 • 3x2 = 27
Taking the nth Root of each side • Isolate the variable or expression being raised to a power • The exponent is n, take the nthroot of both sides of the equation (use a calculator). • If n is even, remember your variable could be positive or negative (you need ± sign). • If an expression was being raised to a power, continue to isolate variable.