Question

5. By factorisation method, the
roots of the quadratic equation,
3x^2 -22x -16 = 0 are *
O 2/3 and 8
O 2/3 and -8
O - 2/3 and 8
O -2/3 and -8​

Answer 1

Step-by-step explanation:

3x² -22x -16 = 0

3x²-24x+2x-16=0

3x(x-8)+2(x-8)=0

(x-8)(3x+2)=0

x=8

x=-2/3.

C.-2/3 and 8.

Answer 2

3x²-22x-16=0

3x²-24x+2x-16=0

3x(x-8)+2(x-8)

(3x+2)(x-8)

3x+2=0 x-8=0

x= -2/3 x=8

third option is right