Subtract the Sum of 5y2 + Y – 3 and Y2 – 3y + 7 from 6y2 + Y – 2.

Subtract the sum of 5y² + y – 3 and y² – 3y + 7 from 6y² + y – 2.

Sum

5y² + y – 3
y² – 3y + 7
6y² – 2y + 4

6y² + y – 2
6y² – 2y + 4
– + –
3y – 6

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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 6 | Page 140

Evaluate :

b²y − 9b²y + 2b²y − 5b²y

Subtract : 4xy² from 3xy²

Subtract : 6a + 3 from a³ − 3a² + 4a + 1

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

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

What must be added to x⁴ – x³ + x² + x + 3 to obtain x⁴ + x² – 1 ?

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

The two adjacent sides of a rectangle are 2x² – 5xy + 3z² and 4xy – x² – z². Find its perimeter.

How much smaller is 15x – 18y + 19z than 22x – 20y – 13z + 26 ?

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