9.10: Chapter 9 Test
Difficulty Level: At Grade
Created by: CK12
Simplify the following expressions.

\begin{align*}(4x^2+5x+1)(2x^2x3)\end{align*}
(4x2+5x+1)−(2x2−x−3)  \begin{align*}(2x+5)(x^2+3x4)\end{align*}
 \begin{align*}(b+4c)+(6b+2c+3d)\end{align*}
 \begin{align*}(5x^2+3x+3)+(3x^26x+4)\end{align*}
 \begin{align*}(3x+4)(x5)\end{align*}
 \begin{align*}(9x^2+2)(x3)\end{align*}
 \begin{align*}(4x+3)(8x^2+2x+7)\end{align*}
Factor the following expressions.
 \begin{align*}27x^218x+3\end{align*}
 \begin{align*}9n^2100\end{align*}
 \begin{align*}648x^232\end{align*}
 \begin{align*}81p^290p+25\end{align*}
 \begin{align*}6x^235x+49\end{align*}
Solve the following problems.
 A rectangle has sides of \begin{align*}x+7\end{align*} and \begin{align*}x5\end{align*}. What value of \begin{align*}x\end{align*} gives an area of 63?
 The product of two positive numbers is 50. Find the two numbers if one of the numbers is 6 more than the other.
 Give an example of two independent events. Determine the probability of each event. Use it to find:
 \begin{align*}P(A \cup B)\end{align*}
 \begin{align*}P(A \cap B)\end{align*}
 The probability it will rain on any given day in Seattle is 45%. Find the probability that:
 It will rain three days in a row.
 It will rain one day, not the next, and rain again on the third day.
Texas Instruments Resources
In the CK12 Texas Instruments Algebra I FlexBook, there are graphing calculator activities designed to supplement the objectives for some of the lessons in this chapter. See http://www.ck12.org/flexr/chapter/9619.
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Date Created:
Feb 22, 2012
Last Modified:
Dec 11, 2014
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