(-4 x -5) + 4 = 24
(7 - 4) x 4 x 2 = 24
4/4=1 square root of 4 is 2. square root of 4 is 2. 2*2*1=4
5 x 7 - 5 + 4 [7-[5/5]]*4 = [7-1]*4 = 6*4 = 24
4x4+4+4=24