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Solve each equation by taking square roots. 7)-7+25a = 29 8) 5x2 + 7 = 87 Simplify. 9) (-4-4i) 10) (-21)(-61)(-4+7i)

Solve each equation by taking square roots. 7)-7+25a = 29 8) 5x2 + 7 = 87 Simplify. 9) (-4-4i) 10) (-21)(-61)(-4+7i)

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