Question

If the roots of the equation 2x^2+8x-m^3=0 are equal then the value of m is

Answer 1

2X² +. 8X - m³

given it's roots are equal so

b²-4ac = 0

•°• (8)² -4 × 2 ×(- M) = 0

=> 64 + 8m = 0

=>m= -8

Answer 2

Answer:

Step-by-step explanation:

Hope it helps you...