Algebra and Trigonometry (6th Edition)
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN: 9780134463216
Author: Robert F. Blitzer
Publisher: PEARSON
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24. Binomial Multiplication Patterns in Pascal's Triangle
a.) What is (x+1)°? (Hint: anything to the 0 power is
b.) What is (x+1)'?
c.) What is (x+1)²? Caution: it is not x2+12, but is gotten by multiplying (x + 1)(x + 1).
d.) Where can the coefficients and constants of each answer be found in Pascal's
triangle? The coefficient is the number in front of x, and the constant is the added on
number. For x + 1, the coefficient in front of the x is a 1, so we have 1x + 1.
Where do you see 1 1 in the triangle?
Where do you see the coefficients and
constants for your answer to part c?
4
1
10
10
1
6 I 15 I 20 I 15
7 I 21 I 35
56 I 70 I 56 I 28
36 I 84 1126 | 126 I 84 I 36
1
6
1
1
35 I 21 I 7
1
8
28
8
1
9
e.) What is (x+1)³? Hint: multiply the result of part c by (x+1), then combine like terms.
Explain how you know you are correct using Pascal's triangle.
f.) Make a conjecture as to what (x+1)4 will equal, using Pascal's triangle. You do not
have to multiply it all out to check, but instead, say how you know you are
correct using Pascal's triangle.
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Transcribed Image Text:24. Binomial Multiplication Patterns in Pascal's Triangle a.) What is (x+1)°? (Hint: anything to the 0 power is b.) What is (x+1)'? c.) What is (x+1)²? Caution: it is not x2+12, but is gotten by multiplying (x + 1)(x + 1). d.) Where can the coefficients and constants of each answer be found in Pascal's triangle? The coefficient is the number in front of x, and the constant is the added on number. For x + 1, the coefficient in front of the x is a 1, so we have 1x + 1. Where do you see 1 1 in the triangle? Where do you see the coefficients and constants for your answer to part c? 4 1 10 10 1 6 I 15 I 20 I 15 7 I 21 I 35 56 I 70 I 56 I 28 36 I 84 1126 | 126 I 84 I 36 1 6 1 1 35 I 21 I 7 1 8 28 8 1 9 e.) What is (x+1)³? Hint: multiply the result of part c by (x+1), then combine like terms. Explain how you know you are correct using Pascal's triangle. f.) Make a conjecture as to what (x+1)4 will equal, using Pascal's triangle. You do not have to multiply it all out to check, but instead, say how you know you are correct using Pascal's triangle.
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