What method(s) would you choose to solve the equation? Explain your reasoning.
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a
Quadratic formula, completing the square or graphing; the coefficient of x2-term is 1, but the equation cannot be factored.
b
Quadratic formula, graphing; the equation cannot be factored easily since the numbers are large.
c
Square roots; there is no x-term.
d
Factoring; the equation is easily factored.