Search for tag: "signs"

Solving a two-step linear inequality: Problem type 1

Shows one example of solving a iinear inequality in two steps.

From  Tom Grant 9 plays 0  

Set Builder Notation

Shows how to take the descriptive set builder notation and write a roster set to represent the same one.

From  Tom Grant 7 plays 0  

Identifying numbers as integers or non-integers

A brief description of what integers consist of followed by a list of numbers where it is decided whether each is an integer or not.

From  Tom Grant 5 plays 0  

Multiplication of 3 or 4 integers

A review of the sign rules for multiplication and three examples to demonstrate these.

From  Tom Grant 9 plays 0  

Integer multiplication and division

A review of the sign results when multiplying integers and then three examples to demonstrate those rules.

From  Tom Grant 10 plays 0  

Addition and subtraction with 3 integers

This describes how integers interact when combined, treating minus signs as a negative sign on the number and thinking that all of the integers are being added with negatives and postives working in…

From  Tom Grant 11 plays 0  

Square roots of perfect squares with signs

This describes what to look for when simplifying radicals.

From  Tom Grant 15 plays 0  

Solving a rational equation that simplifies to linear: Denominator x + a

Shows cross multipication of two single fractions set equat to each other to create a new equation that has no fractions and is then solvable by the typical methods.

From  Tom Grant 15 plays 0  

Adding rational expressions with denominators ax - b and b - ax

Describes how to deal with denominators that are simply opposite in sign when adding or subtracting fractional expressions.

From  Tom Grant 23 plays 0  

Synthetic division

This demonstrates why symthetic division works when dividing by a simple binomial as in x + a or x - a. Then it shows how to fill in the answers for this type of question.

From  Tom Grant 16 plays 0  

Multiplying conjugate binomials: Univariate

Demonstrates what happens when the F.O.I.L. method is applied to multiply two binomails of the form (a + b) (a - b). It's special circumstance that allows a short cut.

From  Tom Grant 32 plays 0  

Simplifying a sum or difference of three univariate polynomials

The key to getting this type of question is distributing any minus sign on the outside of the parentheses to each term on the inside thereby changing all of the i nner signs to their opposite

From  Tom Grant 32 plays 0  

Solving a linear equation with several occurrences of the variable: Variables on both sides

Another type of equation to solve, and a crucial intermediary form that occurs in more complicated forms of finding the solution tp equations.

From  Tom Grant 97 plays 0  

Solving a multi-step equation given in fractional form

Multiplying through the whole equation by the LCD of all terms is the key and first step in solving any equations witihi fractions

From  Tom Grant 22 plays 0  

Multiplicative property of equality with integers

Describes multiplying or dividing both sides of an quationn by the same value in order to get the variable alone on one side

From  Tom Grant 12 plays 0  

Distributive property: Integer coefficients

The next step in understanding distribution.

From  Tom Grant 30 plays 0