Question

12. From the sum of 4a2 - 6a + 3 and - 4a2 - 7a + 5, subtract 3a- 8a +6.

13. The sum of two expressions is a? – b2 + 3b – 5. If one of them is 2b2 + 2a2 - 10, find the other.

14. Sujan spends (3a + 4b) rupees for a shirt and (7a - 5b) rupees for a book. How much does he spend in
all ?​

Answer 1

12. sum of 4a2 - 6a + 3 and - 4a2 - 7a + 5, subtract 3a- 8a +6.

13. The sum of two expressions is a? – b2 + 3b – 5. If one of them is 2b2 + 2a2 - 10, find the other.

14. gautam spends (3a + 4b) rupees for a shirt and (7a - 5b) rupees for a book. How much does he spend in

all ?