Question

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(a) 8
lery Short Answer Type Questions
(1 mark each)
6 If one of the zeroes of the quadratic polynomial f(x) = 4x' - 8kx - 9 is equal in
magnitude but opposite in sign of the other, then find the value of k.
7. Ifa, B are the zeroes of the quadratic polynomial x2 + 5x –10, then find the values of
a²+ B²
hort Answer Type (1) Questions
(2 marks each)
8. Find the zeroes of the quadratic polynomial 7y2 - Y and verify the
relationship between the zeroes and their coefficients.
9. What must be subtracted from f(x) = 4x+ + 2 x – 2x² + x -1, so that the resulting
polynomial is divisible by g(x) = x² +2 x – 3?
10. If the polynomial x4 + 2x + 8x2 +12 x +18 is divided by another polynomial x? +5,
the remainder comes out to be px +q. Then, find the values of p and q.
11. If a+c+e=0 and b+d=0, then find the zeroes of the polynomial​

Answer 1

k=0

Step-by-step explanation:

If the roots are equal in magnitude but opposite in sign, their sum is 0