Lesson 22 · Algebraic Expressions

Multiplying Algebraic Expressions

MathematicsSubject

14 minEstimated read

Activity 22.2

What you needSquared paper, scissors, a ruler and a pencil. Choose one length to call x.

MethodDraw a rectangle x + 2 by x + 3, cut it into four pieces, and label each piece with its area.

Then test itAdd the four areas and compare with the whole rectangle, then check with a real number for x.

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