Question

what will be the nature of roots of the quadratic equation 2x squared + 4 x minus 7 equal to zero

Answer 1

Answer:

Step-by-step explanation:

2x^+4x-7=0

Here, a=2, b=4, C=-7

x=-b±√b^-4ac/2a

=-4±√16-4×2×-7/2×2

=-4±√16+56/4

=4±72/4

Here,x=16+72/4=88/4=22, or,

x=16-72/4=-56/4=14.........ans