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takemiami

  • 3 years ago

2x2 + 13x + 15 2x2 + 27x + 13

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  1. ktnguyen1
    • 3 years ago
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    Factor?

  2. takemiami
    • 3 years ago
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    yes

  3. graydarl
    • 3 years ago
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    \[\Delta=13^{2}-4*2*15, x _{1,2}=(-b \pm \Delta)/2\] result for the first ecuation

  4. graydarl
    • 3 years ago
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    -b=-13

  5. ktnguyen1
    • 3 years ago
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    First 1: a=2, b=13, c=15----->a(c)= 2(15)= 30=3(10) 2x^2+10x+3x+15 2x(x+5)+3(x+5) (2x+3)(x+5) Same idea for #2 2x^2+x+26x+13 X(2x+1)+13(2x+1) (X+13)(2x+1)

  6. graydarl
    • 3 years ago
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    \[x _{1,2}=(-13\pm \Delta)/2^{2}\]

  7. takemiami
    • 3 years ago
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    thank you both :)

  8. ktnguyen1
    • 3 years ago
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    You r wlcm!

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