If two zeroes of the polynomial x3 + x2 – 9x – 9 are 3 and – 3, then its third zero is

Givenx3 + x2 – 9x – 9Zeros = 3 and – 3x = – 1So its third zero is – 1

Q27 of 109 Page 3

If two zeroes of the polynomial x³ + x² – 9x – 9 are 3 and – 3, then its third zero is

Given

x³ + x² – 9x – 9

Zeros = 3 and – 3

x = – 1

So its third zero is – 1

What should be subtracted to the polynomial x² – 16x + 30, so that 15 is the zero of the resulting polynomial?

A quadratic polynomial, the sum of whose zeroes is 0 and one zero is 3, is

If √5 and – √5 are two zeroes of the polynomial x³ + 3x² – 5x – 15, then its third zero is

If x + 2 is a factor of x² + ax + 2b and a + b = 4, then