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Adi3
 one year ago
will medal
How to factor 15x^2 + x – 2
Adi3
 one year ago
will medal How to factor 15x^2 + x – 2

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Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1AC /headphone method find two numbers when you multiply them you should get product of AC and when you add or subtract them you should get middle term

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1Ax^2+Bx+C a=leading coefficient b=middle term c=constant term

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1dw:1441282946820:dw multiply 15 times 2

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1b =1 we just need coefficients

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1so what two number would you multiply to get 30 but when you add or subtract them yo get 1

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1yes right what about signs 5 times 6 =30 but we need negative 30 so which one should be negative 5 or 6 ?

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1right so leading coefficient isnn't negative we should apply the grouping method dw:1441283175163:dw make a group of 2 terms

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1now find common factor of first and 2nd group look at the drawing what is common in blue box ?

Adi3
 one year ago
Best ResponseYou've already chosen the best response.1i get it (3x  1) (5x + 2)
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