\( \left(\dfrac{\left(-70\right)}{2}+2*\left(-1\right)-\left(\dfrac{19}{2}+\dfrac{\left(-97\right)}{2}\right)\right)\left(\left(45+\left(-40\right)\right)\dfrac{\left(-10\right)}{\left(-2\right)}+\sqrt{\left(19+\left(-6\right)\right)\dfrac{\left(-26\right)}{\left(-2\right)}}\right) \)