Question

solve the 6 questions class 10

Answer 1

x^2-2x-8
By factorisation method,
x^2-4x+2x-8
x(x-4) +2(x-4)
(x-4) (x+2)
either x-4=0 or x+2=0
x=4 or x=-2
Product of zeros =-8
Sum of zeros =2

Verification
Compare the equation to ax^2+bx+c
a=1,b=-2,c=-8
Sum of zeros =-b/a=-(-2)/1=2
Product of zeros =c/a=-8/1=-8
Hence Verified.

Hope it helps you....