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Lesson 1: Solving Quadratics by Square Roots (and Cube Roots) Solve each quadratic (or cubic) equation by taking the square root (or cube root). No decimals. 1) x2 227 2) d 1 3) x2 20 4) k 81 5) y2 121 6) x2 50 7) w2 2147 8) 6a 18 9) x2 254 10) a 625. 2
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