Question

Q.1 What should be subtracted from the polynomial p(x)= x2 -16x+30 so that 15 is the zero of the resulting polynomial?

Q.2 If x+2 is a factor of f(x)= x2 + ax + 2b and a + b= 4, then find the value of "a" and "b".

Answer 1

p(x)=2x-16x+30
p(15)=2×15-16×15 + 30
p(15) =30-240 + 30
p(15) = 20