4/9la puterea 5*4/9 la puterea -4x=(27/8) la puterea -14 4/9 la puterea -4x =27/8 la putera -14 :4/9 la puterea 5 4/9 la puterea -4x = 27/8 la puterea -14 * 9/4 la puterea 5 4/9 la puterea -4x =243/32 la puterea -9 -4x=-9 x=-9/4 mai departe nu stiu 5-4x=-14 -4x=-14-5 x=-19/4
