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Evaluate : (3−2x) (3+2x) (9+4x2) - Mathematics

Sum

Evaluate : (3−2x) (3+2x) (9+4x2)

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Solution

(3−2x) (3+2x) (9+4x2)

= [{3}2−(2x)2] (9+4x2)

= (9−4x2) (9+4x2)

= (9)2 − (4x2)2

= 81 − 16x4

Concept: Product of Sum and Difference of Two Terms
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APPEARS IN

Selina Concise Mathematics Class 8 ICSE
Chapter 12 Identities
Exercise 12 (A) | Q 3.4 | Page 150
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