Question

Simplify: 3

−5 10−5 125

5−7 6−5​

Answer 1

Answer:

5−7×6−53−5×10−5×125

=5−7×(2×3)−53−5×(2×5)−5×53

=5−7×2−5×3−53−5×2−5×5−5×53

=3−5+5×2−5+5×5−5+3+7

=55

=3125