Question

Which of the following are solutions to the equation below?

Check all that apply.

12x2 - 5x - 1 = 1

A. -2
B. -1
C. -2/3
D. -1/4
E. 1/4
F. 2/3

Answer 1

@nathaly95 this same like last one:)

Answer 2

D,F :)

Answer 3

\[\Delta=b^2-4ac\]
\[\Delta=(-5)^2-4*12*(-2)\]=121
\[\sqrt{\Delta}=11\]

Answer 4

D. -1/4 is correct

Answer 5

X1=(5-11)/24 = -1/4
X2=(5+11)/24=16/24=2/3

Answer 6

@nathaly95 you will have to solve it now

Answer 7

ok