For Exercises 8–13, rewrite each binomial of the form ( a − b ) n as [ a + ( − b ) ] n . Then expand the binomials. Use Pascal’s triangle to find the coefficients. ( a − b 2 ) 4
For Exercises 8–13, rewrite each binomial of the form ( a − b ) n as [ a + ( − b ) ] n . Then expand the binomials. Use Pascal’s triangle to find the coefficients. ( a − b 2 ) 4
Solution Summary: The author calculates the expanded form of the binomial (a-b2)4 using the Pascal's triangle for the coefficients.
For Exercises 8–13, rewrite each binomial of the form
(
a
−
b
)
n
as
[
a
+
(
−
b
)
]
n
. Then expand the binomials. Use Pascal’s triangle to find the coefficients.
(
a
−
b
2
)
4
Polygon with three sides, three angles, and three vertices. Based on the properties of each side, the types of triangles are scalene (triangle with three three different lengths and three different angles), isosceles (angle with two equal sides and two equal angles), and equilateral (three equal sides and three angles of 60°). The types of angles are acute (less than 90°); obtuse (greater than 90°); and right (90°).
Scientific Notation. In Exercises 9–12, the given expressions are designed to yield results expressed in a form of scientific notation. For example, the calculator-displayed result of 1.23E5 can be expressed as 123,000, and the result of 1.23E-4 can be expressed as 0.000123. Perform the indicated operation and express the result as an ordinary number that is not in scientific notation.
614
Write the first, third and fifth terms of the expansion of (3x – 5y)$.
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