Răspuns :
=9+8×[7+6×17-2]-10×10
=9+8×[7+102-2]-10×10
=9+8×107-10×10
=9+856-100
=865-100=765
=9+8×[7+102-2]-10×10
=9+8×107-10×10
=9+856-100
=865-100=765
9+8x[7+6x(5+12)-2]-10x10
9+8x[7+6x17-2]-10x10
9+8x[7+102-2]-10x10
9+8x[109-2]-10x10
9+8x107-10x10
9+856-100
865-100=765
9+8x[7+6x17-2]-10x10
9+8x[7+102-2]-10x10
9+8x[109-2]-10x10
9+8x107-10x10
9+856-100
865-100=765