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prueba 9no Ec de segundo grado

Authored by Domitila Gonzalez

Mathematics

3rd Grade

Used 5+ times

prueba 9no Ec de segundo grado
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5 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Transforme el polinomio 2x2+8x+5 a la forma a(X+p)2+q, la respuesta es:

2(x+2)+3

2(x+2)2-3

2(x-2)2-3

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Al resolver la ecuación de segundo grado x2+4x-5=0 por completacion de cuadrado la respuesta es:

x=1, x=5

x=1, x=-5

x=2, x=3

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Resolver la ecuación de segundo grado 2x2+4x-6=0, por completacion de cuadrado la respuesta correcta es:

x=1,x=-3

x=1,x=2

x=-1,x=-3

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

la formula General es:

X=bb2+4ac2aX=\frac{-b\sqrt{b^2+4ac}}{2a}

X=b+b24ac2aX=\frac{-b^{ }\frac{\text{+}}{ }\sqrt{b2-4ac}}{2a}

X=b +b24ac2X=\frac{-b\ \frac{+}{ }\sqrt{b^2-4ac}}{2}

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Al resolver la ecuación de segundo grado x2+2x-8=0 la respuesta correcta es:

x=2,x=-4

x=1,x=5

x=3,x=-4

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