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Factorization ( O'level Revision)

Authored by Aminath Zumra

Mathematics

9th - 10th Grade

Used 42+ times

Factorization ( O'level Revision)
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20 questions

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1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Factorise  5y6py5y-6py  

 y(56p)y\left(5-6p\right)  

 y(56py)y\left(5-6py\right)  

 5y(6p)5y\left(6p\right)  

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Factorise        p2q2p^2-q^2  

 (pq)2\left(p-q\right)^2  

 (pq)(p+q)\left(p-q\right)\left(p+q\right)  

 pq(pq)pq\left(p-q\right)  

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Factorise     2x2x2x^2-x  

 x(2x1)x\left(2x-1\right)  

 x(2x)x\left(2x\right)  

 2x(x1)2x\left(x-1\right)  

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Simplify                                            
 x3+5x2x225\frac{x^3+5x^2}{x^2-25}   

giving your answer as a single fraction

 x+15\frac{x+1}{-5}  

 x35\frac{x^3}{5}  

 x2x5\frac{x^2}{x-5}  

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

  Factorise               x2+2x63\ Factorise\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ x^2+2x-63  

 (x+9)(x7)\left(x+9\right)\left(x-7\right)  

 (x9)(x+7)\left(x-9\right)\left(x+7\right)  

 (x+21)(x3)\left(x+21\right)\left(x-3\right)  

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Solve by factorisation  10r223r+9=010r^2-23r+9=0  

 (5r9)(2r1)\left(5r-9\right)\left(2r-1\right)  

 (5r+9)(2r1)=0   r=95 or r=12\left(5r+9\right)\left(2r-1\right)=0\ \ \ r=-\frac{9}{5}\ or\ r=\frac{1}{2}  

 (5r9)(2r1)=0        r=95    or   r=12\left(5r-9\right)\left(2r-1\right)=0\ \ \ \ \ \ \ \ r=\frac{9}{5}\ \ \ \ or\ \ \ r=\frac{1}{2}  

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Solve by factorisation     4x225x21=04x^2-25x-21=0  

 (4x+3)(x7)=0    x=34  or  x=7\left(4x+3\right)\left(x-7\right)=0\ \ \ \ x=-\frac{3}{4}\ \ or\ \ x=7  

 (4x3)(x+7)=0     x= 34  or  x=7\left(4x-3\right)\left(x+7\right)=0\ \ \ \ \ x=\ \frac{3}{4}\ \ or\ \ x=-7  

 (3x4)(x+7)=0    x=7  or  x=43\left(3x-4\right)\left(x+7\right)=0\ \ \ \ x=-7\ \ or\ \ x=\frac{4}{3}  

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