Question

Ne ajudem n sei essas contas

Answer 1

$a)\frac{ \sqrt{( - 6)^{2} - 4.4.( - 4 )} }{2.(4)} = \frac{ \sqrt{36 + 64} }{8} = \frac{ \sqrt{100} }{8} = \frac{10 \div 2}{8 \div 2} = \frac{5}{4} \\ \\ b) \frac{ \sqrt{(7)^{2} - 4.1.6 } }{2.1} = \frac{ \sqrt{49 - 24} }{2} = \frac{ \sqrt{25} }{2} = \frac{5}{2}$