Evaluate : −7x2 + 18x2 + 3x2 − 5x2 - Mathematics

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Sum

Evaluate :

−7x2 + 18x2 + 3x2 − 5x2

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Solution

−7x2 + 18x2 + 3x2 − 5x2

= 21x2 − 12x2

= 9x2

Concept: Combining like Terms
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APPEARS IN

Selina Concise Mathematics Class 8 ICSE
Chapter 11 Algebraic Expressions
Exercise 11 (B) | Q 1.1 | Page 140
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