Question

3. Add the following:


(i) ab-bc, bc-ca, ca-ab
(ii) 12 + m², m? + n2, n? +12,21m+2mn +2nl
(iii) 8xy +6yz - 4zx, 5yz +10zx - 5y,
- 4xz+6x -3xy
(iv) 6x2-3x + 4, 8x -9, 15x2-11x +10.
​

Answer 1

Answer:

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Answer 2

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6. The sum of two numbers is 60 and their ratio is 7 : 5. Find the numbers.

7. A and B start walking from the same place in the opposite directions. If A starts walking at

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