how do i factor 2x^2-5x+3?

Question

anonymous · Answer

are you familiar with ,factoring by grouping?

anonymous · Answer

yes but there are only 3 numbers.....

anonymous · Answer

well, look at the middle number,

can you seperate that into 2 numbers that would allow you to factor by grouping?

anonymous · Answer

examples
-5x=-2x+-3x
-5x=-4x+-1x
-5x=-6x+ 1x
-5x= 6x + -1x

anonymous · Answer

(2x    )(x    ) and it has to be 3 and 1 if it's an easy factorization

anonymous · Answer

thanks also how do you factor 2x^2+7x-15

anonymous · Answer

You can use this formula: $$x _{1,2} = \frac{ -b \pm \sqrt{b ^{2} - 4ac} }{ 2a }$$
where a = 2, b = -5, c =3

anonymous · Answer

The value of a,b and c, you can get from the equation $$ax ^{2}+bx+c$$ You can solve the various forms of equations with ease.

anonymous · Answer

This is just another of same (2x   )(x   )   and your 15 breaks out into 5 and 3

anonymous · Answer

ya but they dont add to 7 right?......

anonymous · Answer

depends on the sign and where you put each one....