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9.4 Factoring to Solve Quadratics

Authored by Melissa Ralph

Mathematics

9th Grade

CCSS covered

Used 32+ times

9.4 Factoring to Solve Quadratics
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20 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt


 Solve by factoring:Solve\ by\ factoring:   2x2+9x+4=02x^2+9x+4=0  

 x=12, x=4x=\frac{1}{2},\ x=4   {12,4}\left\{\frac{1}{2},4\right\}  

 x=12, x=4x=-\frac{1}{2},\ x=-4   {4, 12}\left\{-4,\ -\frac{1}{2}\right\}  

 x=8, x=1x=8,\ x=1   {1,8}\left\{1,8\right\}  

 x=12, x=4x=\frac{1}{2},\ x=-4   {4, 12}\left\{-4,\ \frac{1}{2}\right\}  

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 8x22x3=08x^2-2x-3=0  

 x=12, x=34x=\frac{1}{2},\ x=\frac{3}{4}  or  {12, 34}\left\{\frac{1}{2},\ \frac{3}{4}\right\}  

 x=12, x=34x=-\frac{1}{2},\ x=-\frac{3}{4}  or  {3412}\left\{-\frac{3}{4}-\frac{1}{2}\right\}  

 x=12, x=34x=-\frac{1}{2},\ x=\frac{3}{4}   or  {12, 34}\left\{-\frac{1}{2},\ \frac{3}{4}\right\}  

 x=12, x=34x=\frac{1}{2},\ x=-\frac{3}{4}   or  {34, 12}\left\{-\frac{3}{4},\ \frac{1}{2}\right\}  

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 5x215x90=05x^2-15x-90=0  

 x=6, x=3x=-6,\ x=3  or  {6, 3}\left\{-6,\ 3\right\}  

 x=6, x=3x=6,\ x=3  or  {3,6}\left\{3,6\right\}  

 x=6, x=3x=-6,\ x=-3  or  {6,3}\left\{-6,-3\right\}  

 x=6, x=3x=6,\ x=-3  or  {3,6}\left\{-3,6\right\}  

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 15x2x=615x^2-x=6  

 x=35, x=23x=-\frac{3}{5},\ x=-\frac{2}{3}  or  {23,35}\left\{-\frac{2}{3},-\frac{3}{5}\right\}  

 x=35,  x=23x=\frac{3}{5},\ \ x=\frac{2}{3}  or  {35, 23}\left\{\frac{3}{5},\ \frac{2}{3}\right\}  

 x=35 , x=23x=-\frac{3}{5}\ ,\ x=\frac{2}{3}  or  {35, 23}\left\{-\frac{3}{5},\ \frac{2}{3}\right\}  

 x=35,  x=23x=\frac{3}{5},\ \ x=-\frac{2}{3}  or  {23, 35}\left\{-\frac{2}{3},\ \frac{3}{5}\right\}  

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 2x26x=562x^2-6x=56  

 x=4,  x=7x=-4,\ \ x=-7  

 x=4,   x=7x=4,\ \ \ x=7  

 x=4,  x=7x=4,\ \ x=-7  

 x=4, x=7x=-4,\ x=7  

Tags

CCSS.HSA-REI.B.4B

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 2x2+7x=42x^2+7x=4  

 x=12, x=4x=\frac{1}{2},\ x=4  

 x=12, x=4x=-\frac{1}{2},\ x=4  

 x=12, x=4x=\frac{1}{2},\ x=-4  

 x=12, x=4x=-\frac{1}{2},\ x=-4  

Tags

CCSS.HSA-REI.B.4B

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 6x2+13x=66x^2+13x=-6  

 x=23, x=32x=\frac{2}{3},\ x=\frac{3}{2}  

 x=23, x=32x=-\frac{2}{3},\ x=-\frac{3}{2}  

 x=23, x=32x=\frac{2}{3},\ x=-\frac{3}{2}  

 x=23, x=32x=-\frac{2}{3},\ x=\frac{3}{2}  

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