Repaso identidades notables 4ºESO

Repaso identidades notables 4ºESO

10th Grade

10 Qs

quiz-placeholder

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Repaso identidades notables 4ºESO

Repaso identidades notables 4ºESO

Assessment

Quiz

Mathematics

10th Grade

Medium

Created by

Itziar Romero

Used 2+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Al desarrollar la expresión (2x5 +y2)2, el resultado es.

4x10+4x5y2+y4

2x10+2x2y2+y4

4x10+4x5y2+2y2

2x10+2x7y7+y4

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Desarrolla la siguiente identidad notable: (x2-1)2=

x4+1

x4-1

x4+1-2x2

x4-1-2x2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 (5+2x)2=\left(5+2x\right)^2=  

 25+20x+4x225+20x+4x^2  

 25+10x+2x225+10x+2x^2  

 25+4x225+4x^2  

ninguna de las otras es correcta

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 (4x12)2=\left(4x-\frac{1}{2}\right)^2=  

 16x22x+1416x^2-2x+\frac{1}{4}  

 16x24x+1416x^2-4x+\frac{1}{4}  

 16x242x+2416x^2-\frac{4}{2}x+\frac{2}{4}  

 16x248x+116x^2-\frac{4}{8}x+1  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 (x22+x3)(x22x3)=\left(\frac{x^2}{2}+\frac{x}{3}\right)\left(\frac{x^2}{2}-\frac{x}{3}\right)=  

 x24x9\frac{x^2}{4}-\frac{x}{9}  

 x44x26\frac{x^4}{4}-\frac{x^2}{6}  

 x42x36+x29\frac{x^4}{2}-\frac{x^3}{6}+\frac{x^2}{9}  

 x44x29\frac{x^4}{4}-\frac{x^2}{9}  

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

  (x+12)(x12)=(x+\frac{1}{2})(x-\frac{1}{2})=  

 x2+14x^2+\frac{1}{4}  

 x214x^2-\frac{1}{4}  

 x24x^2-4  

 (x+12)2(x+\frac{1}{2})^2  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 a49a24=\frac{a^4}{9}-\frac{a^2}{4}=  

 (a23a2)(a23+a2)\left(\frac{a^2}{3}-\frac{a}{2}\right)\left(\frac{a^2}{3}+\frac{a}{2}\right)  

 (a23a2)2\left(\frac{a^2}{3}-\frac{a}{2}\right)^2  

 (a23+a2)2\left(\frac{a^2}{3}+\frac{a}{2}\right)^2  

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