## jayda Complete the square: x2 + 2x + ____ . A. 1/2 B. 1 C. 2 D. 4 one year ago one year ago

1. ParthKohli

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

2. ParthKohli

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

3. tanvirms

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

4. ParthKohli

5. ParthKohli

6. tanvirms

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