Question

1-(x-2x^2) I want solution

Answer 1

1 -(x-2x²)=1-x-2x²

a=-2

b=-1

c=1

b²-4ac=

1-4×-2×1=

1+8=9

√9=3

-b+_ √b²-4ac/2a=

1+_3/-4

x= -1 or 1/2