Determine which of the following methods is the best choice for solving the given equation: factoring, using the principle of square roots or using the quadratic formula. Then, solve the equation.5x2 + 8x = - 1

A. Quadratic formula;  
B. Factoring; -8
C. Square root principle; 5, 10
D. Square root principle or factoring; -4, 0


Answer: A

Mathematics

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