1 Answer 1.multiply the First terms. x⋅x=x2. 2.multiply the Outside terms. x⋅10=10x. 3.multiply the Inside terms. −10⋅x=−10x. 4.multiply the Last terms. −10⋅10=−100. 5.add all of the answers together. x2+10x−10x−100. 6.combine like terms. x2+10x−10x−100. =x2−100.