Question

16 What should be added to the polynomial x4 – 5x + 4, so that 3 is the zero of the
pol​

Answer 1

Let the no. to be added be 'k'

Then,

${</strong><strong>3</strong><strong>}^{4}</strong><strong>-5×</strong><strong>3</strong><strong>+4+k=0$

36-15+4+k=0

36-19+k=0

k= -17

Hence,(-17) should be added to the polynomial so that 3 is the zero of the polynomial.

Hope it helps.