ex 66 page 24
15X[3X4+8:(5x2-6)x2]=


Sagot :

15x[3x4+8:(5x2-6)x2]
15x[12+8:(10-6)x2]
15x(12+8:(4)x2)
15x(12+2x2)
15x(12+4)
15x16=240