4)Factoring Quiz - Answers & Help!

Problems:	Solutions:	Where do I need help?
1) Factor Completely.	$\begin{array}{l} 1)16{x^2} - 9\\ {\rm{GCF? No}}{\rm{. }}\\ {\rm{DOTS? Yes}}{\rm{. }}\\ \sqrt {16{x^2}} = 4x,\sqrt {9 = 3} \\ (B)\left( {4x + 3} \right)\left( {4x - 3} \right) \end{array}$	Factoring the Difference of two perfect squares. Practice DOTS
2) Factor Completely.		Factoring GCF and Difference of the Squares. Practice
3) Factor Completely.	$\begin{array}{l} 3)2{a^2} + 8a - 24\\ {\rm{GCF? Yes}}{\rm{. 2}}\\ 2\left( {{a^2} + 4a - 12} \right)\\ {\rm{DOTS? No}}{\rm{. Tri? Yes}}{\rm{.}}\\ (B)2(a + 6)(a - 2) \end{array}$	Factoring GCF and Trinomial (scroll down to bottom) Practice
4) Factor Completely.	$\begin{array}{l} 4)9{x^2} + 21x - 18\\ {\rm{GCF? Yes}}{\rm{. 3}}\\ 3\left( {3{x^2} + 7x - 6} \right)\\ {\rm{DOTS? No}}{\rm{. Tri? Yes}}{\rm{.}}\\ (A)3(3x - 2)(x + 3) \end{array}$	Factoring GCF and Rainbow method. Practice:
5) Factor Completely.	$\begin{array}{l} 5)5{m^2} - 16m + 3\\ {\rm{GCF? No}}{\rm{.}}\\ {\rm{DOTS? No}}{\rm{. Tri? Yes - Rainbow}}{\rm{.}}\\ (C)(5m - 1)(m - 3) \end{array}$	Rainbow