khadija3
khadija3
19-10-2016
Mathematics
contestada
if x +1=7,what is the. value of x2+2x+1?
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Аноним
Аноним
19-10-2016
if x +1=7 then x = 6
x^2+2x+1
= 6^2 + 2(6) + 1
=36 + 12 + 1
=49
value of x2+2x+1 is 49
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gabby556
gabby556
19-10-2016
x=5 5*2+2*5+1=21 is the answer
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