jacoviecastleberry20 jacoviecastleberry20

30-11-2018
Mathematics

contestada

what value in place of the question mark makes the polynomial below a perfect square trinomial? x²+22x+?
A.22 B.121 C.44 D.11

Respuesta :

06-12-2018

Answer:

B. 121

Step-by-step explanation:

Complete the square.

Take half of the middle term, 22, and square it.

So 11^2 = 121.

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