#Maths
35 messages · Page 1 of 1 (latest)
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What do you need to do ?
Partial frac decomp ?
Oooh okay
Did you find the poles of the fraction ?
Okay lol
I persevere and try solving the problem at hand.
That aside do you know how to partial frac decomp ?
take x common from the denom first
then factorise like a quadratic
do like something
except for Caesar's Theorem
uh
split the middle term?
nvm that won't work here
you'll have to do quadratic formula
DO IT
@frail tiger where exactly are you stuck?
Use Quadratic formular to find the factors of the denominator
GOOGLE IT THEN
Hey
Qudratic Formular:
$$
ax^2+bx+c=0 \implies x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}
$$
wild ngl
borekking
@frail tiger got it done?
Yes
Know you have to do the actual partial fraction decomposition
I guess they want you to find $A, \ B, \ C$ such that
$$
\frac{5x-3}{x^3+ 12x^2 + 6x} = \frac{A}{x} + \frac{B}{x-\sqrt{30}+6} + \frac{C}{x+\sqrt{30}+6}
$$
Note that
$$
x^3 + 12x^2 + 6x = x \cdot (x-\sqrt{30}+6) \cdot (x+\sqrt{30}+6)
$$
May I ask for help?
Yes, but probalbly not in this thread...?