Question

Resolva as expressões numéricas:
$\sqrt{} 36 - \sqrt{} 16 + 2 {}^{4} - 1 {}^{7} =$
$\sqrt{ }625 - 7 {}^{1} + \sqrt{}100 - \sqrt{} 64 + 11 {}^{0} =$
$12 {}^{2} - 8 {}^{2} + 3 {}^{4} - 1 {}^{12} + \sqrt{} 400 =$
​

Answer 1

1.

$\sqrt{36}~-~\sqrt{16}~+~2^4~-~1^7~=\\\\\\=~6~-~4~+~16~-~1\\\\\\=~2~+~15\\\\\\=~\boxed{17}$

2.

$\sqrt{625}~-~7^1~+~\sqrt{100}~-~\sqrt{64}~+~11^0~=\\\\\\=~25~-~7~+~10~-~8~+~1\\\\\\=~18~+~2~+~1\\\\\\=~20~+~1\\\\\\=~\boxed{21}$

3.

$12^2~-~8^2~+~3^4~-~1^{12}~+~\sqrt{400}~=\\\\\\=~144~-~64~+~81~-~1~+~20\\\\\\=~80~+~80~+~20\\\\\\=~160~+~20\\\\\\=~\boxed{180}$