Constants Questions

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Source: — Data Sufficiency |

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by cramya » Thu Mar 12, 2009 6:16 pm
X^2 + bx + c = (x+d)^2, what is the value of c?

1. d=3
2. b=6


X^2 + bx + c = (x+d)^2


X^2 + bx + c = x^2+2dx+d^2

Equate coefficients:

b = 2d
c = d^2


Stmt I
d=3 We can find c.

suff

Stmt II

b=6. Can find d then c.

SUFF

Choose D