Question

Complete the equation: x^ 2 +6x+__ =(_)^ 2

Answer 1

x^2+6x+9= (x+3)^2

Explanation:

x^ 2 +6x+__ =(_)^ 2

The formula is a^2+2ab+b^2= (a+b)^2

x^2= a^2

x=a

6x=2ab where a=x

6x=2x*b

b=3

b^2=9

x^2+6x+9= (x+3)^2