
Multiplying Polynomials (FOIL)
Presentation
•
Mathematics
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9th - 11th Grade
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Hard
Joseph Anderson
FREE Resource
8 Slides • 6 Questions
1
Multiplying Polynomials (F.O.I.L.)
2
Multiply Polynomials
When multiplying polynomials, remember the rules of exponents
1. when multiplying same bases, add exponents
2. when dividing same bases, subtract exponents
3. when raising a power to a power, multiply exponents
4. any number to the zero power is 1
3
Multiplying Polynomials by the F.O.I.L. Method
F.O.I.L. stands for First Outside Inside and Last.
It is not the same as rainbow. You do not distribute the terms in the first polynomial.
Multiply FIRST terms; Multiply OUTSIDE terms; Multiply INSIDE terms; Multiply LAST termss.
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Multiple Choice
Multiply:
(x+2)(x−2)
x2−4x−4
x2+4
x2−4
x2+4x−4
10
Multiple Choice
Multiply:
(2x−y)2
Hint: What does it mean to square a number or expression? Multiply it by itself.
4x2−4xy+y2
4x2+y2
4x2−y2
4x2+4xy+y2
11
Multiple Choice
Multiply:
(3a + 4)2
Hint: What does it mean to square a number or expression? Multiply it by itself.
6a2+12a+16
9a2+24a+16
9a2+12a+16
9a2+16
12
Multiple Choice
(4x+1)(5x−2)
13
Multiple Choice
(y - 3)(y + 7)
14
Multiple Choice
Find the product:
(x + 5)(x - 4)
x2 + 9x + 20
x2 + 9x - 20
x2 + x - 20
x2 - x - 20
Multiplying Polynomials (F.O.I.L.)
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