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9+8 x [7+ 6 x (5+4x3) - 2 x 1] - 10 x 10. Va rog dau coroana​

Răspuns :

9+8x[7+6x(5+4x3)-2x1]-10x10=

9+8x[7+6x(5+12)-2x1]-10x10=

9+8x(6x17-2x1)-10x10=

9+8x(102-2)-10x10=

9+8x100-100=

9+800-100=

809-100=

709

9+8×[7+6×(5+4×3)-2×1]-10×10

=9+8×[7+6×(5+12)-2]-100

=9+8×(7+6×17-2)-100

=9+8×(7+102-2)-100

=9+8×107-100

=9+856-100

=865-100

=765