Short-Question

# What is it called when something Cannot be factored?

## What is it called when something Cannot be factored?

In mathematics, an irreducible polynomial is, roughly speaking, a polynomial that cannot be factored into the product of two non-constant polynomials.

How do you know if an expression Cannot be factored?

The most reliable way I can think of to find out if a polynomial is factorable or not is to plug it into your calculator, and find your zeroes. If those zeroes are weird long decimals (or don’t exist), then you probably can’t factor it. Then, you’d have to use the quadratic formula.

### What does irreducible over the reals mean?

Irreducible over the Reals. When the quadratic factors have no real roots, only complex roots involving i, it is said to be irreducible over the reals. This may involve square roots, but not the square roots of negative numbers.

How do you know if a quadratic equation Cannot be factored?

In general, for quadratic equations with integer coefficients, if the discriminant b2 – 4ac in the quadratic equation ax2 + bx + c = 0 is a perfect square, then the solutions are rational. So the square root will remain in the solutions, and the solutions will be irrational.

#### What happens when you cant factor a polynomial?

So, if you can’t factor the polynomial then you won’t be able to even start the problem let alone finish it. A common method of factoring numbers is to completely factor the number into positive prime factors. A prime number is a number whose only positive factors are 1 and itself.

What polynomial Cannot be factored?

A polynomial with integer coefficients that cannot be factored into polynomials of lower degree , also with integer coefficients, is called an irreducible or prime polynomial .

## What does not Factorable mean?

We could say that x2−2x−2 is not factorable over the rational numbers. That is it has no factors whose coefficients are rational numbers. However it is factorable if you allow irrational coefficients. In addition, if Δ is a perfect square (and a,b,c are rational) then it can be factored over the rationals.

What is the meaning of Irreducibility?

1 : impossible to transform into or restore to a desired or simpler condition an irreducible matrix specifically : incapable of being factored into polynomials of lower degree with coefficients in some given field (such as the rational numbers) or integral domain (such as the integers) an irreducible equation.

### What does the word reducible mean?

capable of being reduced
: capable of being reduced a reducible hernia.

What do you call A trinomial that cannot be factored?

Therefore, it is impossible to write the trinomial as a product of two binomials. This trinomial cannot be factored. Similarly to prime numbers, which do not have any factors other than 1 and themselves, the trinomials that cannot be factored are called prime trinomials. Click to see full answer.

#### Which is an example of a factor in an expression?

A factor in an expression is something that is multiplied by something else. It can be a number, variable, term or any other longer expression. For example, the factors of 2xy are 2, x and y. What is a coefficient? A coefficient is a numerical value that is multiplied with a variable. For example, the coefficient of 7x is 7.

What do you call a polynomial that cannot be factored?

Irreducible (Prime) Polynomials. A polynomial with integer coefficients that cannot be factored into polynomials of lower degree, also with integer coefficients, is called an irreducible or prime polynomial. Additionally, how do you tell if you cant factor a polynomial?

## What are the terms of an algebraic expression?

Terms of an Expression. A term can be a number, a variable, product of two or more variables or product of a number and a variable. An algebraic expression is formed by a single term or by a group of terms. For example, in the expression 4 x + y, the two terms are 4 x and y.