Evaluate: (3x – 2)(X + 5) for X = 2.

Evaluate: (3x – 2)(x + 5) for x = 2.

Sum

For x = 2

(3x – 2) (x + 5)

(3 × 2 − 2) (2 + 5)

(6 − 2) × 7

4 × 7

= 28

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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 11.1 | Page 143

Multiply: 2y − 4y³ + 6y⁵ by y² + y − 3

Simplify : (7x – 8) (3x + 2)

Simplify: (5a + 5b – c) (2b – 3c)

Simplify : (4x – 5y) (5x – 4y)

The adjacent sides of a rectangle are x² – 4xy + 7y² and x³ – 5xy². Find its area.

Find the value of (3x³) × (-5xy²) × (2x²yz³) for x = 1, y = 2 and z = 3.

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

Multiply and then verify :
−3x²y² and (x – 2y) for x = 1 and y = 2.

Multiply: (ab – 1) (3 – 2ab)

Simplify : (5 – x) (6 – 5x) (2 -x).