Simplify : (Px – Q) (Px + Q)

Simplify : (px – q) (px + q)

Sum

(px – q) (px + q) = px(px + q) – q(px + q)

= p²x² + pxq – pqx – q²

= p²x² – q²

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Multiplying a Polynomial by a Polynomial

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Chapter 11: Algebraic Expressions - Exercise 11 (C) [Page 143]

Chapter 11 Algebraic Expressions
Exercise 11 (C) | Q 3.2 | Page 143

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