takemiami
2x2 + 13x + 15
2x2 + 27x + 13
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ktnguyen1
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Factor?
takemiami
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yes
graydarl
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\[\Delta=13^{2}-4*2*15, x _{1,2}=(-b \pm \Delta)/2\] result for the first ecuation
graydarl
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-b=-13
ktnguyen1
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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)
graydarl
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\[x _{1,2}=(-13\pm \Delta)/2^{2}\]
takemiami
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thank you both :)
ktnguyen1
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You r wlcm!