can you show me how?
3x^2 - 9x - 54
= 3(x^2 - 3x - 18)
=3(x - 6)(x + 3)
First simplify the equation by factoring out the 3,
3(x^2 - 3x - 18) = 3(x - 6)(x + 3)
ALWAYS START WITH COMMON FACTORS.
=3(x²-3x-18)
now see if there are any more factors. in this case there is more.
=3(x-6)(x+3)
Comments
3x^2 - 9x - 54
= 3(x^2 - 3x - 18)
=3(x - 6)(x + 3)
First simplify the equation by factoring out the 3,
3(x^2 - 3x - 18) = 3(x - 6)(x + 3)
ALWAYS START WITH COMMON FACTORS.
=3(x²-3x-18)
now see if there are any more factors. in this case there is more.
=3(x-6)(x+3)