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Christos
 3 years ago
Factor 15x^2  37x + 20
Christos
 3 years ago
Factor 15x^2  37x + 20

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hartnn
 3 years ago
Best ResponseYou've already chosen the best response.2do you know how to generally factor a quadratic ?

Christos
 3 years ago
Best ResponseYou've already chosen the best response.0I know some methods but I guess I miss this one

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.2for \(ax^2+bx+c\), you need to find 2 numbers with sum = b and product = ac so, for your question, you need to find 2 numbers with sum =37 and product = 20*15 = 300

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.2so which 2 numbers u get ? then split 37x accordingly...

Christos
 3 years ago
Best ResponseYou've already chosen the best response.0I got 20 and 15 what now?

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.2good! split 37x as 20x15x so, you have \(15x^215x20x+20\) there's a common factor in 1st 2 terms and a common factor in last 2 terms, can you proceed ?

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.2oh wait, 20 and 15 are incorrect :P

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.2bingo! split 37x as 25x12x so, you have \(15x^2−25x−12x+20\) there's a common factor in 1st 2 terms and a common factor in last 2 terms, can you proceed ?

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.2from first 2 terms factor out 5x

Christos
 3 years ago
Best ResponseYou've already chosen the best response.05x(3x  5)  4(3x + 20)

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.212x+20 = 4 (3x+.....?)

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.2so, now factor 3x5 from that

Christos
 3 years ago
Best ResponseYou've already chosen the best response.0What do you mean? I dont understand :SS

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.25x (3x5) 4(3x5) factor out 3x5 (3x5)(5x4) i meant this, and you're done

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Bonjour! Comment allez vous?

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.2i am fine, do u need any help ? with what ?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0You are very good at teaching people

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.2oh, thank you very much :) :D

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0\[15x^2  37x + 20 \] \[(3 x5) (5 x4)\]
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