Which of the following constants can be added to x^2 - 10x to form a perfect square trinomial? 10 25 100

asked Sep 18, 2017 146k views

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Which of the following constants can be added to x^2 - 10x to form a perfect square trinomial?

10
25
100

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3 votes

b)-25 is the correct answer.

I just did this exact question in my schooling.

Alka Vaghela answered Sep 19, 2017

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5 votes

halve middle term
-10/2=-5
squaer it
(-5)^2=25
that is what should be added

answer is 25

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