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OpenStudy (anonymous):
If x + 1 = 7, what is the value of x2 + 2x + 1 ? a.36 b.37 c.48 d.49 e.81
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OpenStudy (luigi0210):
solve for x first: x+1=7
OpenStudy (anonymous):
x=6
OpenStudy (luigi0210):
good, now plug that in for x and solve :) f(6)=(6)^2+2(6)+1
OpenStudy (anonymous):
49
OpenStudy (luigi0210):
there you go :P
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