Question

which expression gives the solution of -5+2x^2=-6x?

Answer 1

\[2 +- \sqrt{4 - (4)(6)(-5)}\]

Answer 2

or

Answer 3

\[-5 +-\sqrt{25-(4)(2)(6)}\]

Answer 4

or

Answer 5

\[-6 +- \sqrt{36 -(4)(2)(-5)}\]

Answer 6

or

Answer 7

\[6 +- \sqrt{36 -(4)(2)(5)}/4\]

Answer 8

the first one should be divided by 12
the second one should be divided by -10
the third one should be divided by 4

Answer 9

the roots are from formulation

if you arrange the equation 2x^2+6x-5=0
here b=6 a=2 c=-5 and delta=b^2-4ac=36-4.2.(-5)=76
so roots are -6+76^1/2 over 4 and -6-76^1/2 over 4
so it the third one and like you said it should be divided by 4