Question

$(- 4^{2}) + (- 1^{5}) + 4. (-10)] : (-40+15) + \sqrt{36}- \sqrt{49}=$

Answer 1

$\frac{(-4)^{2} +(-1 ^{5} )+4*(-10)}{(-40+15)+ \sqrt{36} - \sqrt{49} } \\ \\ \frac{16-1-40}{-25+6-7} \\ \\ \frac{15-40}{-19-7} \\ \\ \frac{-25}{-26}$

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