Evaluate: X(X – 5) + 2 for X = 1.

Evaluate: x(x – 5) + 2 for x = 1.

Sum

For x = 1

x(x – 5) + 2

1(1 − 5) + 2

−4 + 2

= −2

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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 12.1 | Page 143

Multiply: 6x³ − 5x + 10 by 4 − 3x²

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5p²+ 25pq + 4q² by 2p² − 2pq +3q²

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The base and the altitude of a triangle are (3x – 4y) and (6x + 5y) respectively. Find its area.

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Evaluate: xz (x² + y²) for x = 2, y = 1 and z= 1.

Evaluate: xy²(x – 5y) + 1 for x = 2 and y = 1.