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 gabby556
  • 19-10-2016
x=5 5*2+2*5+1=21 is the answer

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