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Alina [70]
3 years ago
10

Please Help!! what value of b makes the trinomial below a perfect square?

Mathematics
1 answer:
Anna [14]3 years ago
4 0
Remember, you take 1/2 of b and square it to get c

c=100
(b/2)^2=c
(b/2)^2=100
sqrt oth sides
b/2=+/-10
times both sides by 2
b=+/-20
it is 20 or -20

answe ris B
yo is right
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