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Actividad #3 (fórmulas notables) 8-7

Authored by Jorge Rojas

Mathematics

8th Grade

Used 2+ times

Actividad #3 (fórmulas notables) 8-7
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10 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Al efectuar la operación   (8m+5n)2\ \left(8m+5n\right)^2   se obtiene como resultado

 16m2+10n216m^2+10n^2  

 64m2+25n264m^2+25n^2  

 64m2+80mn+25n264m^2+80mn+25n^2  

 64m+80mn+25n64m+80mn+25n  

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

El resultado de  (72x3+6y4)2\left(\frac{7}{2}x^3+6y^4\right)^2  corresponde a

 494x9+42x3y4+36y16\frac{49}{4}x^9+42x^3y^4+36y^{16}  

 494x6+42x3y4+36y8\frac{49}{4}x^6+42x^3y^4+36y^8  

 494x6+36y8\frac{49}{4}x^6+36y^8  

 494x9+36y16\frac{49}{4}x^9+36y^{16}  

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

La expresión que completa correctamente el resultado de (4x5+3x6)2=16x10++9x12\left(4x^5+3x^6\right)^2=16x^{10}+_{----}+9x^{12}  correponde a

 12x1112x^{11}  

 24x3024x^{30}  

 24x1124x^{11}  

 12x3012x^{30}  

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Al efectuar la operación  (65a3b4)2\left(-6-5a^3b^4\right)^2  se obtiene como resultado

 3660a3b4+25a6b836-60a^3b^4+25a^6b^8  

 36+60a3b4+25a6b836+60a^3b^4+25a^6b^8  

 36+60a3b4+25a9b1636+60a^3b^4+25a^9b^{16}  

 3660a3b4+25a9b1636-60a^3b^4+25a^9b^{16}  

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

El resultado de  (83m4)2\left(8-3m^4\right)^2  corresponde a

 6448m4+9m864-48m^4+9m^8  

 6424m4+9m864-24m^4+9m^8  

 649m864-9m^8  

 649m1664-9m^{16}  

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 

La expresión que completa correctamente el resultado de   (9y6+x3)2=x6+81y12  \left(-9y^6+x^3\right)^2=x^6-_{----}+81y^{12}\ \   corresponde a

 9x3y69x^3y^6  

 18x3y618x^3y^6  

 9xy9xy  

 18xy18xy  

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 

La expresión que completa correctamente el resultado de   (2m354)(2m354)=4m6+2516  \left(2m^3-\frac{5}{4}\right)\left(2m^3-\frac{5}{4}\right)=4m^6-_{----}+\frac{25}{16}\ \   corresponde a

 208m3\frac{20}{8}m^3  

 52m3\frac{5}{2}m^3  

 54m3\frac{5}{4}m^3  

 5m35m^3  

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