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Which value is needed to create a perfect square trinomial from the expression x2 + 8x + _____?

Which value is needed to create a perfect square trinomial from the expression x2 + 8x + _____?
asked 110k views
5 votes
Which value is needed to create a perfect square trinomial from the expression x2 + 8x + _____?

asked
User Quant Christo
by
8.2k points

2 Answers

1 vote

the answer is 16

i know this because my smartness got it right

answered
User Marceloduende
by
7.7k points
4 votes
To solve this problem, divide 8 by 2 and then square the product.


x^2 + 8x

(8)/(2) = 4
Square 4

4^2 = 16
Answer =
x^2 + 8x + 16
answered
User M Rostami
by
8.4k points
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