Question

calcule:
√¯25 - ³√¯8
³√¯27 + ⁴√¯16
³√¯125 - ³√¯8
√¯49 + √¯25 - ³√¯64

Answer 1

1)
$\sqrt{25} - \sqrt[3]{8} = \sqrt{ {5}^{2} } - \sqrt[3]{ {2}^{3} } = 5 - 2 = 3$
2)
$\sqrt[3]{27} + \sqrt[4]{16} = \sqrt[3]{ {3}^{3} } + \sqrt[4]{ {2}^{4} } = 3 + 2 = 5$
3)
$\sqrt[3]{125} - \sqrt[3]{8} = \sqrt[3]{ {5}^{3} } - \sqrt[3]{ {2}^{3} } = 5 - 2 = 3$
4)
$\sqrt{49} + \sqrt{25} - \sqrt[3]{64} = \sqrt{ {7}^{2} } + \sqrt{ {5}^{2} } - \sqrt[3]{ {4}^{3} } = 7 + 5 - 4 = 8$
Espero ter ajudado! Bons estudos!