Multiply the given expression geometrically.

Question

(x+4)(x+2)=?

(Needed answer.)

Answer 1

Foil principle: first, outer, inner, last

First: x*x

Outer: x*2

Inner: 4*x

Last: 4*2

(x+4)(x+2) = x*x + x*2 + 4*x + 4*2 = x^2 + 2x + 4x + 8 = x^2 + 6x + 8