Question

considerando que a×b=20 , calcule o valor de :
A) a²×b²=
B)a³×b³=
​

Answer 1

$\Large\boxed{\begin{array}{l}\underline{\rm produto\,de\,bases\,diferentes}\\\underline{\rm tomados\,ao\,mesmo\,expoente}\\\huge\boxed{\boxed{\boxed{\boxed{\rm (a\cdot b)^2=a^n\cdot b^n}}}}\\\\\sf a\times b=20\\\sf a)~a^2\times b^2=(a\times b)^2=20^2=400\\\sf b)a^3\times b^3=(a\times b)^3=20^3=8000\end{array}}$