Question

a) –12 2 + + 6 – 8 15 2 + + 3 – 20 – 25 10 =


b) − +5 (− − 6) ( 5− +) (− −+ + 9) ( 7) (− + 10) 7 − =


c) [ ] − +6 (4 2 + −) (− − 9) [ ] ( 4− −) (+ −7 5) ( + −12) 7 + −15=​

Answer 1

nose perdon :c...............