Add : 3b − 7c + 10, 5c − 2b − 15, 15 + 12c + B

Add : 3b − 7c + 10, 5c − 2b − 15, 15 + 12c + b

Sum

3b − 7c + 10
−2b + 5c − 15
+b + 12c + 15
2b + 10c + 10

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Combining like Terms

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Chapter 11 Algebraic Expressions
Exercise 11 (B) | Q 2.3 | Page 140

Evaluate :

−7x² + 18x² + 3x²− 5x²

Evaluate :

abx − 15abx − 10abx + 32abx

Add : 5a + 3b, a − 2b, 3a + 5b

Add : a − 3b + 3; 2a + 5 − 3c; 6c − 15 + 6b

Add : x³ − x²y + 5xy² + y³, - x³ − 9xy² + y³, 3x²y + 9xy²

Subtract : 4xy² from 3xy²

Subtract : x³ − 4x − 1 from 3x³ − x² + 6

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

How much more than 2x² + 4xy + 2y² is 5x² + 10xy – y² ?

If x = 6a + 8b + 9c ; y = 2b – 3a – 6c and z = c – b + 3a ; find :