Adi3
  • Adi3
will medal How to factor 15x^2 + x – 2
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
Adi3
  • Adi3
@ganeshie8
Adi3
  • Adi3
@Duck.
Adi3
  • Adi3
@Nnesha

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More answers

Adi3
  • Adi3
i nedd help please help
Nnesha
  • Nnesha
AC /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
  • Nnesha
Ax^2+Bx+C a=leading coefficient b=middle term c=constant term
Adi3
  • Adi3
a = 15 b= x c = -2
Adi3
  • Adi3
ac = -30 b = x
Nnesha
  • Nnesha
|dw:1441282946820:dw| multiply 15 times -2
Nnesha
  • Nnesha
b =1 we just need coefficients
Adi3
  • Adi3
okay
Nnesha
  • Nnesha
so what two number would you multiply to get -30 but when you add or subtract them yo get 1
Adi3
  • Adi3
5.6
Nnesha
  • Nnesha
yes right what about signs 5 times 6 =30 but we need negative 30 so which one should be negative 5 or 6 ?
Adi3
  • Adi3
5
Adi3
  • Adi3
-5
Nnesha
  • Nnesha
right so leading coefficient isnn't negative we should apply the grouping method |dw:1441283175163:dw| make a group of 2 terms
Nnesha
  • Nnesha
now find common factor of first and 2nd group look at the drawing what is common in blue box ?
Adi3
  • Adi3
i get it (3x - 1) (5x + 2)
Adi3
  • Adi3
thnxs for helping
Nnesha
  • Nnesha
hm np :=)
Adi3
  • Adi3
ive me a medal
Nnesha
  • Nnesha
i've ? or give ?
Adi3
  • Adi3
give
Adi3
  • Adi3
tnxs

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