In Problems 39–42, write each expression in the form ax p + bx q or ax p + bx q + cx r , where a, b, and c are real numbers and p, q, and r are integers. For example, 2 x 4 − 3 x 2 + 1 2 x 3 = 2 x 4 2 x 3 − 3 x 2 2 x 3 + 1 2 x 3 = x − 3 2 x − 1 + 1 2 x − 3 40. 5 x 3 − 2 3 x 2
In Problems 39–42, write each expression in the form ax p + bx q or ax p + bx q + cx r , where a, b, and c are real numbers and p, q, and r are integers. For example, 2 x 4 − 3 x 2 + 1 2 x 3 = 2 x 4 2 x 3 − 3 x 2 2 x 3 + 1 2 x 3 = x − 3 2 x − 1 + 1 2 x − 3 40. 5 x 3 − 2 3 x 2
Solution Summary: The author explains the expression 5x3-23, where a, b, and c are real numbers. Using the above definition and exponent property simplify the given expression as
In Problems 39–42, write each expression in the form axp + bxq or axp + bxq + cxr, where a, b, and c are real numbers and p, q, and r are integers. For example,
2
x
4
−
3
x
2
+
1
2
x
3
=
2
x
4
2
x
3
−
3
x
2
2
x
3
+
1
2
x
3
=
x
−
3
2
x
−
1
+
1
2
x
−
3
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.
0.312
Questions 15: (A.SSE.A.2) *
The expression 4x² – 25 is equivalent to
-
O (4x- 5)(x+5)
(4x+5)(x - 5)
(2x + 5)(2x - 5)
(2x - 5)(2x - 5)
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