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completeidiot Group TitleBest ResponseYou've already chosen the best response.0
are you familiar with ,factoring by grouping?
 2 years ago

dddan Group TitleBest ResponseYou've already chosen the best response.0
yes but there are only 3 numbers.....
 2 years ago

completeidiot Group TitleBest ResponseYou've already chosen the best response.0
well, look at the middle number, can you seperate that into 2 numbers that would allow you to factor by grouping?
 2 years ago

completeidiot Group TitleBest ResponseYou've already chosen the best response.0
examples 5x=2x+3x 5x=4x+1x 5x=6x+ 1x 5x= 6x + 1x
 2 years ago

estudier Group TitleBest ResponseYou've already chosen the best response.0
(2x )(x ) and it has to be 3 and 1 if it's an easy factorization
 2 years ago

dddan Group TitleBest ResponseYou've already chosen the best response.0
thanks also how do you factor 2x^2+7x15
 2 years ago

Husnul_Aini Group TitleBest ResponseYou've already chosen the best response.0
You can use this formula: \[x _{1,2} = \frac{ b \pm \sqrt{b ^{2}  4ac} }{ 2a }\] where a = 2, b = 5, c =3
 2 years ago

Husnul_Aini Group TitleBest ResponseYou've already chosen the best response.0
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.
 2 years ago

estudier Group TitleBest ResponseYou've already chosen the best response.0
This is just another of same (2x )(x ) and your 15 breaks out into 5 and 3
 2 years ago

dddan Group TitleBest ResponseYou've already chosen the best response.0
ya but they dont add to 7 right?......
 2 years ago

estudier Group TitleBest ResponseYou've already chosen the best response.0
depends on the sign and where you put each one....
 2 years ago
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