answersLogoWhite

0

How do you solve a cubic?

Updated: 4/28/2022
User Avatar

Gugalenikunj

Lvl 1
12y ago

Best Answer

Although there are formal methods, the simplest is to see if the cubic can be factorised. If so, you'll have a linear factor and a quadratic, both of which are easy to solve.

Alternatively, you could try solving it graphically.

Another possibility is to solve it numerically. The derivative of a cubic, of the form f(x) = ax3 + bx2 + cx + d is f'(x) = 3ax2 + 2bx + c.

Make an initial estimate x1. An improved estimate is x2 = x1 - f(x1)/f'(x1). Use x2 to make next estimate, and so on.

User Avatar

Wiki User

12y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How do you solve a cubic?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

How do you solve a cubic centimeter?

A cubic centimetre is a measure of volume. There is nothing to solve.


How do you solve for cubic meter?

p


When did Tartaglia solve the cubic equations?

1539


What is the cubic foot of your microwave?

There is not enough information to solve that problem.


How do you solve the volume of prisms?

It is: cross-section area*length and measured in cubic units


How do you solve cubic cm to liters?

There are 1000 cubic cm in one Litre so just divide by 1000. EG 250cc = 0.25 L


How Do you solve a cubic equation by trisecting an angle?

The classical problem of angle trisection cannot be solved. If it were possible, it would provide the solution to a cubic equation. (-but it isn't and it won't!)


How to convert 1064.32 square meters to cubic meters?

you can't Square meters are a measure of area, cubic meters are a measure of volume. If you were told a cube has an area of 1064 square meters what is it's volume? then you could solve it but that is not what you have asked!


What are the dimensions of a 250 Liter drum?

Several dimensions can result in the same volume. Remember that liter is the same as cubic decimeter; 250 liter is equivalent to 0.25 cubic meters. Use the formula for a cylinder; use any value for the radius, then solve for the height.


How do you solve a cubic equation?

If you can find a simple factoring of the cubic polynomial, then it is fairly easy to solve (by the zero-product property). Otherwise it isn't; there are several iterative methods, but none of them is simple. That's why the solution of polynomials of degree is usually not covered in high school, or even in college. If you are really interested in the more or less complicated details, the Wikipedia article on "Root-finding algorithm" gives you an introduction.


What is the formula to solve the density of water for change in temperature?

waters density it 1 gram per cubic centimeter. the formula for density is Mass of object divided by its volume


How many cup in 2 fl of vinegar?

1 cup (metric) = 250.0 × 10−6 cubic meter 1 cubic meter = 1 milliliter (mL) 1 L = 1000 mL = 1000 cubic meter 1 fl (femtoliter) = 1.0 * 10-15 L I already give you the conversion units, try to solve it.