Question

Complete the square: x2 + 2x + ____ .
A. 1/2
B. 1
C. 2
D. 4

Answer 1

I am not gonna go with that boring approach; let's try to be logical.

Answer 2

OK, what is \((a + b)^2\)?

Answer 3

1, x2+2.x.1+1^2= (x+1)^2

Answer 4

@tanvirms You really shouldn't answer... please.

Answer 5

Answering questions has a very bad impact.

Answer 6

well i answered cuz he wanted an answer :)

Answer 7

Dang, no! Don't ever give anyone the answer. Help them by leading them to an answer and explaining.

Answer 8

@Luis_Rivera I take it that you meant\[x^2 + 2x + \left(2\over 2\right)^2 = x^2 + 2x + 1 \]