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Multiplying binomials and polynomials | Algebra Basics | Khan Academy
By Khan Academy
This instructor in this ten-minute video, Sal Khan, demonstrates how to multiply polynomials. Mr. Khan uses the Paint Program (with different colors) to illustrate his points. Sal Khan is the recipient of the 2009 Microsoft Tech Award in Education. The student or educator may want to open the video to 'full screen' as the instructor is using a black background and the writing is small
Understanding moving the decimal
By Khan Academy
Holy cow! A shortcut? Yep. For each ten you multiply or divide by, just shift that decimal to the right or left. Watch this and be amazed.
Understanding moving the decimal
By Khan Academy
When we were multiplying, we moved the decimal to the right for each power of ten. Guess what? When dividing, we move the decimal to the left for each power of ten.
Complex Numbers - Multiplying and Dividing
By PatrickJMT
This video lesson contains a few example problems on multiplying and dividing complex numbers. For multiplication, the FOIL method is discussed, and for division, the idea of complex conjugates is discussed.
FOIL method for multiplying binomials example 2
By Khan Academy
FOIL method for multiplying binomials example 2
Multiplying Polynomials - Introduction
By AcademicLeadersEd
Multiplying Polynomials - Introduction an educational video resources on math.
Multiplying Single Digit Numbers by Powers of 10
By StoneBridgeMath
This video demonstrates what it means to multiply a single digit number by a power of ten. For example 4 x 10 5 x 100 or 3 x 1000. This video can be used to build understanding of place value and would be a good precursor to expanded notation.
Multiplying and dividing complex numbers in polar form
By Khan Academy
Sal shows how complex division affects the modulus and the argument of the divisor and the dividend.
Multiply monomials by polynomials
By Khan Academy
Sal expresses the area of a rectangle whose height is 4 and width is x^2+3x+2.
Multiply monomials by polynomials
By Khan Academy
Sal finds the values of coefficients c, d, and f that make -2y(y^2+cy-3)=dy^3+12y^2+fy true for all y-values.
Multiplying 2 digits by 2 digits
By Khan Academy
The trick here to remember your place value as you multiply and then add the numbers. We'll demonstrate and make it perfectly clear!
Ex: Multiplying Using the Distributive Property
By Mathispower4u
This video provides examples of multiplication of a monomial and a binomial as well as a monomial and a trinomial using the distributive property.