Question

10.Write the general form of a linear equation in two variables
11. If the sum of the first n terms of an AP is 3n' + 1 and its common difference is 6, then
find the first term
12. How many maximum numbers of zeros can a cubic polynomial have?​

Answer 1

Answer:

12= the maximum number of zeros of cubic polynomial is 3

Answer 2

Answer:

10. ax + by + c = 0

11. Given, Common difference (d) = 6

Sn = 3n + 1, put n = 1

S1 = A1 = 3 * 1 + 1 = 3 + 1 = 4

12. Cubic polynomial can have maximum 3 zeroes because its highest power is 3. Ex:- x³- 2x² + 3 = 0

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