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Polynomfight

Authored by Ted Eklund

Mathematics

9th Grade

Used 4+ times

Polynomfight
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11 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

(10x + 5y)(10x - 5y)=

10x25y210x^2-5y^2

100x225y2100x^2-25y^2

100x2+50xy+25y2100x^2+50xy+25y^2

100x2100xy+25y2100x^2-100xy+25y^2

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 (2a+4b)2\left(2a+4b\right)^2  

 4a2+16b24a^2+16b^2  

 2a2+16ab+4b22a^2+16ab+4b^2  

 4a2+16ab+16b24a^2+16ab+16b^2  

 36a2b236a^2b^2  

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 2x(7x25y)2x\left(7x^2-5y\right)  

 14x310xy14x^3-10xy  

 14x35xy14x^3-5xy  

 7x35xy7x^3-5xy  

 14x210y14x^2-10y  

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 15x+355\frac{15x+35}{5}  

 15x+715x+7  

 10x10x  

 3x+353x+35  

 3x+73x+7  

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 32x2y34xy2\frac{32x^2y^3}{4xy^2}  

 8x2y8x^2y  

 8xy8xy  

 8x3y58x^3y^5  

 8+xy8+xy  

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 (ab)2=\left(a-b\right)^2=  

 a2+2ab+b2a^2+2ab+b^2  

 a2+2abb2a^2+2ab-b^2  

 a22ab+b2a^2-2ab+b^2  

 a2ab+b2a^2-ab+b^2  

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 a2+2ab+b2a2b2=\frac{a^2+2ab+b^2}{a^2-b^2}=  

 a+bab\frac{a+b}{a-b}  

 a+ba+b  

 aba-b  

 2a2+2ab2a^2+2ab  

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