Question

(x+4)(x+8) I can't understand it

Answer 1

Given the following expression:

`(x+4)(x+8)`

we can apply the distributive property on the right factor to get the following:

`(x+4)(x+8)=x\cdot(x+8)+4\cdot(x+8)`

doing the same on each term, we get:

`\cdot x(x+8)+4\cdot(x+8)=x^2+8x+4x+32`

adding the similar terms, we get the following:

`x^2+8x+4x+32=x^2+12x+32`

thus, the expanded expression is x^2 + 12x + 32