Question

Calcule:

√144 + √25 - 8²

√18 + √100 - 6²

√25 + √36 - 8²

Answer 1

a) -47

b) -26 + 3√2

c) -53

Explicação passo-a-passo:

a) √144 + √25 - 8²

-64 + 12 + 5

-47

_________________________

b) √18 + √100 - 6²

-36 + 3√2 + 10

-26 + 3√2

_________________________

c) √25 + √36 - 8²

-64 + 5 + 6

-53

Answer 2

$\large\boxed{\begin{array}{l}\sf a)\\\rm\sqrt{144}+\sqrt{25}-8^2=12+5-64=-47\\\sf b)\\\rm \sqrt{18}+\sqrt{100}-6^2=\sqrt{9\cdot2}+10-36\\\rm\sqrt{18}+\sqrt{100}-6^2=3\sqrt{2}-26\\\sf c)\\\rm\sqrt{25}+\sqrt{36}-8^2=5+6-64=-53\end{array}}$