[tex]2\times \:\left[3-\left(-6\right)^2\div \left(-9\right)\right]-2\times \:\left[5-\left(-7\right)\right]=-10[/tex]
[tex]\left[3-\left(-6\right)^2\div \left(-9\right)\right] = 3-\left(-6\right)^2\div \left(-9\right) =3-36\div \left(-9\right) =3-\left(-4\right) =7[/tex]
[tex]=2\times \:7-2\times \:\left[5-\left(-7\right)\right][/tex]
[tex]\:\left[5-\left(-7\right)\right]\::\quad 12 = 5-\left(-7\right) =5+7 = 12[/tex]
[tex]=2\times \:7-2\times \:12 =14-2\times \:12 =14-24 =-10[/tex]
Sper că te-am ajutat!
Succes!
