joelpimentel
15.10.2019 •
Mathematics
What should be done to x^2+ 15x in order to create a perfect square?
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Ответ:
Add 225/4 to x^2 + 15x.
Step-by-step explanation:
Take the coefficient of the middle term, 15.
Now divide it by 2, 15/2.
Square that, 225/4.
Add 225/4 to x^2 + 15x.
Ответ: