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Examen 2° Secundaria(25/09/2020)

Authored by Gabriel Porras

Mathematics

8th Grade

Used 2+ times

Examen 2° Secundaria(25/09/2020)
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5 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 s4s+4t3t+s5t=s-4s+4t-3t+s-5t=  

 2s4t-2s-4t  

 2s4t2s-4t  

 4t2-4t-2  

 2s2t2s-2t  

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Sumar: 8a – 3b + 5c – d ; - 2b + c – 4d ; - 3a +5b – c

5 a + 5c + 5d

5 a - 5c - 5d

5 a + 5c - 5d

5 a + 5c

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Sumar: 3m – 2n + 4; 6n + 4p – 5 ; 8n – 6 ; m – n – 4p

4m + 11n – 7

4m + 11n – 2

4m + 11n - 5

4m - 11n – 7

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 Sumar: 𝑥3+𝑥𝑦2+𝑦3;5𝑥2𝑦+𝑥3𝑦3;2𝑥34𝑥𝑦25𝑦3Sumar:\ 𝑥^3+𝑥𝑦^2+𝑦^3;−5𝑥^2𝑦+𝑥^3−𝑦^3;2𝑥^3−4𝑥𝑦^2−5𝑦^3   

 4𝑥33𝑥𝑦25𝑦34𝑥^3−3𝑥𝑦^2−5𝑦^3  

 4𝑥35𝑥2𝑦+3𝑥𝑦25𝑦34𝑥^3−5𝑥^2𝑦+3𝑥𝑦^2−5𝑦^3  

 4𝑥35𝑥2𝑦3𝑥𝑦2+5𝑦34𝑥^3−5𝑥^2𝑦−3𝑥𝑦^2+5𝑦^3  

 4𝑥35𝑥2𝑦3𝑥𝑦25𝑦34𝑥^3−5𝑥^2𝑦−3𝑥𝑦^2−5𝑦^3  

5.

MULTIPLE SELECT QUESTION

5 mins • 1 pt

Media Image

El resultado de esta suma algebraica es:

5x3 x2 2x +15x^{3\ }-x^2\ -\ 2x\ +1

x3+ 2x2+x+2x^3+\ 2x^2+x+2

5x3+ 2x2+x15x^3+\ 2x^2+x-1

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