If using the method of completing the square to solve the quadratic equation x^2-13x+14=0, which number would have to be added t o "complete the square"?
1 answer:
Answer:
169/4
Step-by-step explanation:
Take the coefficient of the x term. Here it's -13. Now halve that, obtaining -13/2. Finally, square this result. We get 169/4 . This is the desired number.
x^2 - 13x + 169/4 - 169/4 + 14 = 0
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cos x sin x = sin x
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60 I believe I hope this helps if it was right :)
