Question

The area of a square is known to be 9b2+42b+49. What is the length of one of the sides?

Answer 1

You know the area of a square is described by\[A=s^2,\]where s is one of the sides.

Can you get the expression\[9b^2+42b+49\]into a form looking like\[(? + ?)^2\]?

Answer 2

Across, everytime you post a different pic, you look like a different person. How do you do that?

Answer 3

(3b+7)^2

Answer 4

Yup