Question

The Quadratic Formula gives which roots for the equation 2x2 + x - 6 = 0 ?

Answer 1

x1 =2, x2=-3.

Explanation:

x^2 +x-6=0

a=1, b=1, c=-6

x1 =(-b+sqrt(b^2-4ac)) /2a

x1 =(-1+sqrt(1^2-4*1*(-6))/2*1

x1=(-1+sqrt(1+24))/2

x1=(-1+sqrt(25))/2

x1=(-1+5)/2

x1=4/2

x1 =2

x2=(-b-sqrt(b^2-4ac))/2a

x2=(-1-5)/2

x2 =-6/2

x2=-3