Evaluate: (3x – 2)(X + 5) for X = 2. - Mathematics

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Sum

Evaluate: (3x – 2)(x + 5) for x = 2.

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Solution

For x = 2

(3x – 2) (x + 5)

(3 × 2 − 2) (2 + 5)

(6 − 2) × 7

4 × 7

= 28

Concept: Multiplying a Polynomial by a Polynomial
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APPEARS IN

Selina Concise Mathematics Class 8 ICSE
Chapter 11 Algebraic Expressions
Exercise 11 (C) | Q 11.1 | Page 143
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