Question

Find zeroes of quadratic polynomial p(x) = x2 -3x - 4.

Answer 1

Answer:

x2-3x-4=0

-x-4=0

-x=4 or x=-4

Answer 2

x²-3x-4

x²-(4-1)x-4

x²-4x+x-4

x(x-4)+1(x-4)

(x-4)(x+1)

Hence-----

x-4=0

x=4

x+1=0

x= -1

Thus,the zeroes are 4 and -1.