The answer would be a. Quadratic formula, completing the square or graphing; the coefficient of x^2-term is 1, but the equation cannot be factored.
Since the equation cannot be factored easily, we can consider other methods to solve it. The quadratic formula is a reliable method to solve quadratic equations and can be used in this case. Alternatively, completing the square or graphing can also be used to find the solution.
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.
1 answer