By completing the square, how would u factor 3x^2-5x-12?
i mean, how would you SOLVE this by completing the square?
i mean, how would you SOLVE this by completing the square?
Perfect Gamer
Favorite Answer
(3x )(x ) you know this because its the only way you will get 3x^2
(3x+ )(x- ) because a + plus a - = a -
then think what equals 5x
3x times 3 = 9x
4 times x = 4x
9x-4x=5x
(3x+4)(x-3)
yearlyattitude
It would be (3x+4)(x-3)
Anonymous
(3x+4)(x-3)