3
5. If 1 and 2 are two zeroes of the polynomial x3 – 4×2 – 7x + 10. Find its third zero.
6. If -1 is one of the zeroes

Question

3
5. If 1 and 2 are two zeroes of the polynomial x3 – 4×2 – 7x + 10. Find its third zero.
6. If -1 is one of the zeroes of the polynomial x –
4×2 + x + 6. Find the other zeroes.
7. If one of the zeroes of the cubic polynomial x3 + ax2 + bx + c is -1, then find the product of
other two Zeroes.

Natalia · Answer

Answer:     5. -2 , 1 and 5 are the zeros   6. 3/2 is the other zero  7. c/a is the product of other two zeros

Caroline

Ans: New mean
Find the sum of the deviations of the variates 6, 8, 10, 16, 20, 24 from their mean

7. If 2: y = 12:30, then what is the value of y?
(A) 3 (B) 4 (C) 5 (D) 6

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35. If 1 and 2 are two zeroes of the polynomial x3 – 4×2 – 7x + 10. Find its third zero.6. If -1 is one of the zeroes