Which of the following constants can be added to x2 + x to form a perfect square trinomial? a. 1/9 b. 4/9 c. 4 1/9

Question

Mathematics

Krueger

6 July, 19:37

Which of the following constants can be added to x2 + x to form a perfect square trinomial? a. 1/9 b. 4/9 c. 4 1/9

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Beaux · Answer 1

You can add 4/9.

A simple trick is to look at the numerator and denominator separately, if they're both perfect squares then you're good (4, 2^2, check. 9, 3^2, check.)