Question

Can someone give me a few example of a few simple cubic equations? One using ax^3+bx^2+c+d=0 formula

Answer 1

you can create yor own by multiplying out:

(x+a)(x+b)(x+c)=0

for any integer values of a,b, and c

Answer 2

?

Answer 3

Please explain

Answer 4

Hello SmoothMath, can you help me? :/

Answer 5

ax^3+bx^2+c+d=0
x is your variable.
a, b, c, and d are just constants. Pick any number for each one of them, and you have a cubic, as long as you don't pick 0 for a.
Here's an example.
a=2 b=3 c=2 d=1 gives you
2x^3 + 3x^2 +2x + 1 =0

Another example
a = 1 b=-12 c=0 d=25 gives
x^3 -12x^2 +25 = 0

Answer 6

oooo okay so is that the final answer or do you solve for 0?

Answer 7

?

Answer 8

it is amazingly hard to solve for a cubic equation
what amsitre was suggesting is to start with your equation in factored form, then multiply out, and you will know what the zeros are

Answer 9

But I mean... it seems like all the problem is asking for is "name a cubic equation"
Which doesn't even require that you solve it. Setting one up is ridiculously simple.

Answer 10

Sorry I must have worded it wrong I meant solving a cubic equation

Answer 11

what is an example of solving a cubic equation

Answer 12

?

Answer 13

Ah, yes. Well then you should do what Amistre told you to do. Pick 3 linear factors and then multiply those three factors together. The solutions to the linear factors will be the solutions to your new cubic equation.