Question

Solve 3x2 + 6x = 8.

a. 1 plus or minus 2 square root 33
b. the quantity of negative 3 plus or minus I square root 15 all over 3
c. the quantity of negative 3 plus or minus square root 33 all over 3
d. 1 plus or minus 2 i square root 15

Answer 1

Answer: C

quantity of -3 +/- square root 33 all over 3

Answer 2

The quantity of negative 1 plus or minus square root 33 all over 3

Explanation:

3x2+6x=8

3x^2+6x-8=0

Quadratic formula

x=-b +or-√b^2-4ac/2a

a=3

b=6

c=-8

x=-b +or-√b^2-4ac/2a

=-6 +or- √(6)^2 - 4*3*-8/2*3

=-6 +or- √36-(-96)/6

=-6 +or-√36+96/132

=-6 +or- √132/6

=-6 +or- 2√33/6

=-6/6 +or- 2√33/6

= -1 +or- √33/3

The quantity of negative 1 plus or minus square root 33 all over 3