Simplifying by Adding or Subtracting Common Radical Factors
. Simplifying a radical expression by adding or subtracting common radical factors is illustrated.
Subject: subtract
Transcript: NEXT WE'LL TAKE A LOOK AT ADDING AND SUBTRACTING EXPRESSIONS THAT INCLUDE RADICALS. FOR EXAMPLE, 3 TIMES THE SQUARE ROOT OF 5 PLUS 4 TIMES THE
Review of Arithmetic Operations
Explains how algebra is different than simple addition, subtraction and multiplication?
Subject: addition, subtraction
Transcript: NARRATOR: BY NOW, YOU KNOW ABOUT ARITHMETIC. IF YOU'RE GIVEN SOME NUMBERS, TWO OR MORE, YOU CAN ADD, SUBTRACT, MULTIPLY, OR DIVIDE THEM. YOU CAN
Simplifying to Find a Common Radical Factor
The process of simplifying to find a common radical factor is demonstrated.
Subject: subtract
Transcript: 'T SUBTRACT THE TERMS, THE RADICALS ARE NOT THE SAME. BUT LOOK AT THE RADICANDS. BOTH 18 AND 50 HAVE PERFECT SQUARE FACTORS, SO WE HAVE TO SIMPLIFY. THE PERFECT
Practical Problem: The Length of the Spring on a Scale
Using the elimination method to solve a practical problem involving a scale, a spring, and some weights.
Subject: subtract
Transcript: SUBSTITUTION OR ELIMINATION. WE'LL USE ELIMINATION. WE'LL SUBTRACT THE EQUATIONS TO ELIMINATE L. 4X EQUALS 1. X IS 0.25. THAT'S A QUARTER OF AN INCH. TO FIND L
Practical Problem: Subtracting Boxes in a Warehouse
A practical problem solved using subtraction in an algebraic expression.
Series: Adding And Subtracting Algebraic Expressions
Subject: subtract
Transcript: ? LET'S USE ALGEBRA. FIRST, WE NOTE WHAT WE STARTED WITH AND WHAT THE CUSTOMER GAINED AND LOST. THEN WE CAN SUBTRACT. WE STARTED WITH 8L PLUS 6M PLUS 12S
Polynomials, Monomials, Binomials, Trinomials
Three types of polynomials are defined: monomials, binomials, and trinomials.
Series: Adding And Subtracting Algebraic Expressions
Subject: subtract
Transcript: NARRATOR: ALL WE'VE DONE WITH THE VARIABLES IS ADD, SUBTRACT, AND MULTIPLY THEM, OR RAISE THEM TO A POWER. NO DIVIDING BY VARIABLES. NO VARIABLES
Subtracting Like Terms
Subtracting like terms demonstrated and applied to a practical problem.
Series: Adding And Subtracting Algebraic Expressions
Subject: subtract
Transcript: NARRATOR: NOW IT'S TIME TO LOOK AT SUBTRACTION. HERE'S AN EXAMPLE. BACK AT THE WAREHOUSE THERE ARE 12 LARGE CARTONS OF BULBS, 6 MEDIUM CARTONS, AND
Subtracting Rational Expressions
Rational expressions with the same number in the denominator are subtracted.
Subject: subtract
Transcript: TRY THIS SUBTRACTION PROBLEM YOURSELF. 5N OVER N MINUS 1 MINUS 5 OVER N MINUS 1. THE DENOMINATOR OF EACH EXPRESSION IS N MINUS 1. SINCE THE
Solving an Equation by Adding
An explanation of how to solve an algebraic equation by subtracting.
Subject: subtract
Transcript: 2 IS IN THE WAY. HOW CAN WE GET RID OF IT? WE SUBTRACT 2 FROM BOTH SIDES OF THE EQUATION. ON THE LEFT SIDE OF THE EQUATION, WE GET X PLUS 2 MINUS 2
Solving an Equation by Multiplying
An explanation of how to solve an algebraic equation by adding.
Subject: subtract
Transcript: VARIABLE PLUS A CONSTANT IN AN EQUATION, WE CAN GET RID OF THE CONSTANT BY SUBTRACTING IT FROM BOTH SIDES OF THE EQUATION. BUT IF WE'RE GIVEN A VARIABLE