Get an early head start on your math for next week! Be extra prepared for the upcoming test. Here are video previews of the topics for next week.
(Tuesday) Adding Polynomials- Click Here (video)
Powerpoint- Click to View
(Wednesday) Scientific Notation- Click Here (video)
(Thursday) Subtracting Polynomials- Click Here (video)
Powerpoint- Click to View
(Friday) Review
Thursday, September 2, 2010
Wednesday, September 1, 2010
Multiplying Polynomials
Helpful Video Link- CLICK HERE
Review for Algebra 3 Quiz
Multiplying Polynomials
Equation 1: (5x2)(–2x3)
Any math problem with a parenthesis ( ) means that you need to multiply. Be sure to multiply similar “parts” of the equation with each other. There are the two pairs of similar “parts” to this equation- 1.) the 5 and the -2 and 2.) the x2 and the x3
For example:
Pair one: 5 times -2 = -10
And
Pair 2: x2 times x3 = x5
(NOTE: When you need to multiply exponents, remember to ADD them instead)
CORRECT ANSWER: –10x5
Equation 2: –3x(4x2 – x + 10)
To solve equation 2, we will need to multiply the -3x with the three other parts of the equation (4x2 – x + 10). Be sure to follow the same rules that I listed above (similar parts).
–3x(4x2 – x + 10)
= –3x(4x2) – 3x(–x) – 3x(10)
= –12x3 + 3x2 – 30x
Review for Algebra 3 Quiz
Multiplying Polynomials
Equation 1: (5x2)(–2x3)
Any math problem with a parenthesis ( ) means that you need to multiply. Be sure to multiply similar “parts” of the equation with each other. There are the two pairs of similar “parts” to this equation- 1.) the 5 and the -2 and 2.) the x2 and the x3
For example:
Pair one: 5 times -2 = -10
And
Pair 2: x2 times x3 = x5
(NOTE: When you need to multiply exponents, remember to ADD them instead)
CORRECT ANSWER: –10x5
Equation 2: –3x(4x2 – x + 10)
To solve equation 2, we will need to multiply the -3x with the three other parts of the equation (4x2 – x + 10). Be sure to follow the same rules that I listed above (similar parts).
–3x(4x2 – x + 10)
= –3x(4x2) – 3x(–x) – 3x(10)
= –12x3 + 3x2 – 30x
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