completa esta 2 tabla en tu cuaderno
lenguaje algebraico
a b (a+b)2 (a-b)2 a2 - b2
-6 4
1/2 -1
0,2 -2,2
no entiendo
la pregunta 83
Adjuntos:
CristianFRC:
Será mejor que le tomes una foto y la adjuntes para poder ayudarte mejor.
Respuestas
Respuesta dada por:
25
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Te adjunto imagen donde indico cual es cada punto.
Para que sea más fácil transformaré las expresiones decimales en fraccionarias: 0,2=2/10 y -2,2=-22/10
¡Empecemos! :D
![1.) \ (-6+4)^2=(-2)^2=4 1.) \ (-6+4)^2=(-2)^2=4](https://tex.z-dn.net/?f=1.%29+%5C+%28-6%2B4%29%5E2%3D%28-2%29%5E2%3D4)
![2.) \ ( \frac{1}{2}+ (-1))^2=( \frac{1}{2}-1)^2=( \frac{1-2}{2})^2=(\frac{-1}{2})^2= \frac{(-1)^2}{2^2}= \frac{1}{4} = 0,25 2.) \ ( \frac{1}{2}+ (-1))^2=( \frac{1}{2}-1)^2=( \frac{1-2}{2})^2=(\frac{-1}{2})^2= \frac{(-1)^2}{2^2}= \frac{1}{4} = 0,25](https://tex.z-dn.net/?f=2.%29+%5C+%28+%5Cfrac%7B1%7D%7B2%7D%2B+%28-1%29%29%5E2%3D%28+%5Cfrac%7B1%7D%7B2%7D-1%29%5E2%3D%28+%5Cfrac%7B1-2%7D%7B2%7D%29%5E2%3D%28%5Cfrac%7B-1%7D%7B2%7D%29%5E2%3D+%5Cfrac%7B%28-1%29%5E2%7D%7B2%5E2%7D%3D+%5Cfrac%7B1%7D%7B4%7D+%3D+0%2C25++)
![3.) ( \frac{2}{10} + (- \frac{11}{5} ))^2=( \frac{2}{10} - \frac{11}{5})^2=( \frac{2-2(11)}{10})^2=( \frac{-20}{10})^2=(-2)^2=4 3.) ( \frac{2}{10} + (- \frac{11}{5} ))^2=( \frac{2}{10} - \frac{11}{5})^2=( \frac{2-2(11)}{10})^2=( \frac{-20}{10})^2=(-2)^2=4](https://tex.z-dn.net/?f=3.%29+%28+%5Cfrac%7B2%7D%7B10%7D+%2B+%28-+%5Cfrac%7B11%7D%7B5%7D+%29%29%5E2%3D%28+%5Cfrac%7B2%7D%7B10%7D+-+%5Cfrac%7B11%7D%7B5%7D%29%5E2%3D%28+%5Cfrac%7B2-2%2811%29%7D%7B10%7D%29%5E2%3D%28+%5Cfrac%7B-20%7D%7B10%7D%29%5E2%3D%28-2%29%5E2%3D4)
![4.) \ (-6-4)^2=(-10)^2=100 4.) \ (-6-4)^2=(-10)^2=100](https://tex.z-dn.net/?f=4.%29+%5C+%28-6-4%29%5E2%3D%28-10%29%5E2%3D100)
![5.) \ ( \frac{1}{2}- (-1))^2=( \frac{1}{2}+1)^2=( \frac{1+2}{2})^2=(\frac{3}{2})^2= \frac{3^2}{2^2}= \frac{9}{4} = 2,25 5.) \ ( \frac{1}{2}- (-1))^2=( \frac{1}{2}+1)^2=( \frac{1+2}{2})^2=(\frac{3}{2})^2= \frac{3^2}{2^2}= \frac{9}{4} = 2,25](https://tex.z-dn.net/?f=5.%29+%5C+%28+%5Cfrac%7B1%7D%7B2%7D-+%28-1%29%29%5E2%3D%28+%5Cfrac%7B1%7D%7B2%7D%2B1%29%5E2%3D%28+%5Cfrac%7B1%2B2%7D%7B2%7D%29%5E2%3D%28%5Cfrac%7B3%7D%7B2%7D%29%5E2%3D+%5Cfrac%7B3%5E2%7D%7B2%5E2%7D%3D+%5Cfrac%7B9%7D%7B4%7D+%3D+2%2C25)
![6.) ( \frac{2}{10} - (- \frac{11}{5} ))^2=( \frac{2}{10} + \frac{11}{5})^2=( \frac{2+2(11)}{10})^2=( \frac{24}{10})^2=( \frac{12}{5})^2= \frac{12^2}{5^2} \\ = \frac{144}{25} =5,76 6.) ( \frac{2}{10} - (- \frac{11}{5} ))^2=( \frac{2}{10} + \frac{11}{5})^2=( \frac{2+2(11)}{10})^2=( \frac{24}{10})^2=( \frac{12}{5})^2= \frac{12^2}{5^2} \\ = \frac{144}{25} =5,76](https://tex.z-dn.net/?f=6.%29+%28+%5Cfrac%7B2%7D%7B10%7D+-+%28-+%5Cfrac%7B11%7D%7B5%7D+%29%29%5E2%3D%28+%5Cfrac%7B2%7D%7B10%7D+%2B+%5Cfrac%7B11%7D%7B5%7D%29%5E2%3D%28+%5Cfrac%7B2%2B2%2811%29%7D%7B10%7D%29%5E2%3D%28+%5Cfrac%7B24%7D%7B10%7D%29%5E2%3D%28+%5Cfrac%7B12%7D%7B5%7D%29%5E2%3D+%5Cfrac%7B12%5E2%7D%7B5%5E2%7D+%5C%5C+%3D+%5Cfrac%7B144%7D%7B25%7D+%3D5%2C76)
![7.) \ (-6^2)-(4^2)=36-16=20 7.) \ (-6^2)-(4^2)=36-16=20](https://tex.z-dn.net/?f=7.%29+%5C+%28-6%5E2%29-%284%5E2%29%3D36-16%3D20)
![8.) \ ( \frac{1}{2}^2 )-(-1^2)= \frac{1}{4} -1= \frac{-3}{4}= -0,75 8.) \ ( \frac{1}{2}^2 )-(-1^2)= \frac{1}{4} -1= \frac{-3}{4}= -0,75](https://tex.z-dn.net/?f=8.%29+%5C+%28+%5Cfrac%7B1%7D%7B2%7D%5E2+%29-%28-1%5E2%29%3D+%5Cfrac%7B1%7D%7B4%7D+-1%3D+%5Cfrac%7B-3%7D%7B4%7D%3D+-0%2C75)
![9.) \ ( \frac{2}{10}^2)-( \frac{-22}{10}^2)= \frac{4}{100}- \frac{484}{100}= \frac{4-484}{100}= \frac{480}{100}= \frac{48}{10}=4,8 9.) \ ( \frac{2}{10}^2)-( \frac{-22}{10}^2)= \frac{4}{100}- \frac{484}{100}= \frac{4-484}{100}= \frac{480}{100}= \frac{48}{10}=4,8](https://tex.z-dn.net/?f=9.%29+%5C+%28+%5Cfrac%7B2%7D%7B10%7D%5E2%29-%28+%5Cfrac%7B-22%7D%7B10%7D%5E2%29%3D+%5Cfrac%7B4%7D%7B100%7D-+%5Cfrac%7B484%7D%7B100%7D%3D+%5Cfrac%7B4-484%7D%7B100%7D%3D+%5Cfrac%7B480%7D%7B100%7D%3D+%5Cfrac%7B48%7D%7B10%7D%3D4%2C8++++)
Te adjunto imagen donde indico cual es cada punto.
Para que sea más fácil transformaré las expresiones decimales en fraccionarias: 0,2=2/10 y -2,2=-22/10
¡Empecemos! :D
Adjuntos:
![](https://es-static.z-dn.net/files/dd0/b67d0108ab9240ab8e9398f845805c08.jpg)
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