Question

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

Answer 1

Factor?

Answer 2

yes

Answer 3

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

Answer 4

-b=-13

Answer 5

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)

Answer 6

\[x _{1,2}=(-13\pm \Delta)/2^{2}\]

Answer 7

thank you both :)

Answer 8

You r wlcm!