Question

How do you find the product of `(y+2)^2`?

Answer 1

`y^2+4y+4`

Explanation:

`(y+2)(y+2)`

Multiply the terms according to the colours.

`(color(red)y+2)(color(red)y+2)`
`(color(red)y+2)(y+color(red)2)`
`(y+color(red)2)(color(red)y+2)`
`(y+color(red)2)(y+color(red)2)`

After multiplying:

`y^2+2y+2y+4 = y^2+4y+4`