Note: Q 1-2 are VSA carrying 1 Mark each.Q 6-8 are SA type carrying 3

1.	Note: Q 1-2 are VSA carrying 1 Mark each.Q 6-8 are SA type carrying 3 Marks each.Q1 Find the zeros of polynomial x2 + 2x +1.Sol.
Answer» x=1, -1 is correct answer x=1, -1 is the correct answer x^2+2x+1=x^2+1x+1x+1=x(x+1)+1(x+1)= ( x+1)(x+1)=(x+1)^2; x=-1, -1 x^2+2x+1=0x^2+x+x+1=0x(x+1)+1(x+1)=0(x+1)(x+1)=0either x+1=0x= -1x+1=0x= -1-1, -1 are the zerossum of zeros= -2product of zeros= 1

Note: Q 1-2 are VSA carrying 1 Mark each.Q 6-8 are SA type carrying 3 Marks each.Q1 Find the zeros of polynomial x2 + 2x +1.Sol.

Answer»

x=1, -1 is correct answer

x=1, -1 is the correct answer

x^2+2x+1=x^2+1x+1x+1=x(x+1)+1(x+1)= ( x+1)(x+1)=(x+1)^2; x=-1, -1

x^2+2x+1=0x^2+x+x+1=0x(x+1)+1(x+1)=0(x+1)(x+1)=0either x+1=0x= -1x+1=0x= -1-1, -1 are the zerossum of zeros= -2product of zeros= 1