Respostas
respondido por:
1
a) ![(-5)^{3}+3^{4}=[(-5).(-5).(-5)]+(3.3.3)=125+27=152](https://tex.z-dn.net/?f=%28-5%29%5E%7B3%7D%2B3%5E%7B4%7D%3D%5B%28-5%29.%28-5%29.%28-5%29%5D%2B%283.3.3%29%3D125%2B27%3D152 "(-5)^{3}+3^{4}=[(-5).(-5).(-5)]+(3.3.3)=125+27=152")
b)![(-3)^{3}-(-3)^{2}-(-3)^{0}=[(-3).(-3).(-3)]-[(-3).(-3)]-1=](https://tex.z-dn.net/?f=+%28-3%29%5E%7B3%7D-%28-3%29%5E%7B2%7D-%28-3%29%5E%7B0%7D%3D%5B%28-3%29.%28-3%29.%28-3%29%5D-%5B%28-3%29.%28-3%29%5D-1%3D "(-3)^{3}-(-3)^{2}-(-3)^{0}=[(-3).(-3).(-3)]-[(-3).(-3)]-1=")
c)![2(-5)^{2}-(-7)^{2}=2[(-5).(-5)]-[(-7).(-7)]=2.25-49=50-49=1](https://tex.z-dn.net/?f=+2%28-5%29%5E%7B2%7D-%28-7%29%5E%7B2%7D%3D2%5B%28-5%29.%28-5%29%5D-%5B%28-7%29.%28-7%29%5D%3D2.25-49%3D50-49%3D1 "2(-5)^{2}-(-7)^{2}=2[(-5).(-5)]-[(-7).(-7)]=2.25-49=50-49=1")
b)
c)
Perguntas similares
7 anos atrás
9 anos atrás
9 anos atrás
9 anos atrás
9 anos atrás
9 anos atrás