SOLUTION: explain why completing the square to solve x^2 - 5x - 7 = 0 is a better strategy than graphing the related function or factoring

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Question 1156217: explain why completing the square to solve x^2 - 5x - 7 = 0 is a better strategy than graphing the related function or factoring
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
More effective way to find some important points on the graph, without blindly picking x and computing y.

Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
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I suggest that the answer to this question CRITICALLY DEPENDS on the goals of an analysis.

It is the same as to ask, who is stronger: an elephant or a whale ?


The kids under 5 years old love such questions.


Then they become older, they learn everything else from their smartphones.