Take Away – 3x3 + 4x2 – 5x+ 6 from 3x3 – 4x2 + 5x – 6 - Mathematics

Take away – 3x³ + 4x² – 5x+ 6 from 3x³ – 4x² + 5x – 6

Sum

3x³ – 4x² + 5x – 6
– 3x³ + 4x² – 5x + 6
+ – + –
6x³ – 8x² +10x – 12

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Combining like Terms

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Chapter 11: Algebraic Expressions - Exercise 11 (B) [Page 140]

Chapter 11 Algebraic Expressions
Exercise 11 (B) | Q 5.1 | Page 140

Evaluate :

−7x² + 18x² + 3x²− 5x²

Evaluate :

7x − 9y + 3 − 3x − 5y + 8

Add : 8x − 3y + 7z, −4x + 5y − 4z, −x − y − 2z

Find the total savings of a boy who saves ₹ (4x – 6y), ₹ (6x + 2y), ₹ (4y – x) and ₹ (y – 2x) for four consecutive weeks.

Subtract : −2x²y + 3xy²from 8x²y

Subtract : a²+ ab + b² from 4a² − 3ab + 2b²

Take m² + m + 4 from −m² + 3m + 6 and the result from m² + m + 1.

How much less 2a² + 1 is than 3a² – 6 ?

The sides of a triangle are x² – 3xy + 8, 4x² + 5xy – 3 and 6 – 3x² + 4xy. Find its perimeter.

How much bigger is 5x²y² – 18xy² – 10x²y than –5x² + 6x²y – 7xy?