Question

a²+b², para a=-3, b=-5 e c =-2
c²

Answer 1

a = - 3, b = - 5, c = - 2

(a² + b²)/c² =
= ((- 3)² + (- 5)²)/(- 2)² =
= (9 + 25)/4 =
= 34/4 =
= 17/2

Answer 2

Olá.

$\mathsf{\dfrac{a^2+b^2}{c^2}=\dfrac{(-3)^2+(-5)^2}{(-2)^2}=\dfrac{9+25}{4}=\dfrac{34}{4}}\\\\\boxed{\mathsf{\left(\dfrac{34}{4}\right)^{:2}=\dfrac{17}{2}=8,5}}$

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Bons estudos.