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Key Quiz 5.3
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1
Match the quadratic expressions on the left with their factors on the right: <a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070780846/506629/FFCM11_KeyQuiz5_3_question1.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (41.0K)</a>
A)1b, 2d, 3a, 4c, 5e
B)1e, 2a, 3b, 4d, 5c
C)1a, 2e, 3b, 4c, 5d
D)1a, 2e, 3c, 4d, 5b
2
Factor: x2 –16x.
A)x(x + 16)
B)(x + 4)(x – 4)
C)x(x – 16)
D)x2(–16)
3
Factor fully: 75m – 12n2
A)3(25m)2 – 42)
B)3(5m - 2n)(5m + 2n)
C)3(5m - 2n)2
D)Cannot be factored.
4
Find the fully-factored dimensions of the rectangular area shown, assuming there are no fractions among the coefficients of the expressions for the dimensions.
<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070780846/506629/FFCM11_KeyQuiz5_3_question4.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (6.0K)</a>
A)x + 2, x – 8
B)x – 2, x + 8
C)x – 4, x + 4
D)x + 4, x – 10
5
Find the fully-factored dimensions of the shaded region shown, assuming there are no fractions among the coefficients of the expressions for the dimensions.
<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070780846/506629/FFCM11_KeyQuiz5_3_question5.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (12.0K)</a>
A)x + 7, x – 7
B)x – 5, x – 5
C)x + 5, x – 5
D)Cannot be factored.





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