Question

If the zeroes of polynomial 2x²-8x-m are 5/2and3/2 respectively , find value of m

Answer 1

put m = 5/2 in the equation and out it equal to zero .

you will get

2×(25/4) - 8×(5/2) - m = 0

m = 25/2-40/2 =-15/2 = - 7.5