# algebra II

• có ai biết làm algebra II khổng ?

• có đại ca đây ...cần help gì ?

• chưa bít but i will try

• Trùi post kiểu này làm sao ng ta giúp đc
If u have a specific question then post it, this is too vague

• cái này năm sau cb mới học nên ko biết

• post kiểu này chắc là muốn spam đó

• where is the problem ?

• Yea, but what problem do you need help wỉth that is a very broad question

• how to solve this equation:
y'' + 5ý -y + 8 = 3x -7
y(0)=1
y'(1)=2

• hey daibang, íts not college algebra bro. looks like differential equation. I took it 2 years agọ Ím not sure but you might try:

m^2 + 5m - 1=0 ; r1,2 = (-5 +- (21^1/2))/2
then y= C1*exp(r1x) +C2 exp(r2x) + 3x-15 ( *)
so, x=0 -> y( 0) =c1 + c2 - 15 =1 -> c1+ c2= 16 (1)
ý(1) = c1*r1exp ( r1x) + c2r2exp (r2x)+3=2 (2)

From (1) and (2)-> c1, c2. Plug them bak into (*) to find the answer.
Íve tried my best already hope it would help u

• trời ơi khó quá , differential equation is very hard. You should take Numerical Analysis

• that is a second order linear differential equation. you can rewrite the equation in the form ar^2 + br + c = 0 and solve for "r" like a quadratic equation. next, you have to know the general formula, which i dónt think i can right it on herẹ but goes over ur math notes, it should tell you what to do once you figured out what "r" is: