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Evaluate : 3x2 + 5xy − 4y2 + X2 − 8xy − 5y2 - Mathematics

Sum

Evaluate :

3x2 + 5xy − 4y2 + x2 − 8xy − 5y2

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Solution

3x2 + 5xy − 4y2 + x2 − 8xy − 5y2

= 3x2 + 5xy − 8xy − 4y2 − 5y2

= 3x2 − 3xy − 9y2

Concept: Combining like Terms
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APPEARS IN

Selina Concise Mathematics Class 8 ICSE
Chapter 11 Algebraic Expressions
Exercise 11 (B) | Q 1.5 | Page 140
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