Question

associatiue ( (a omega=(a times(b times c)]=[(a times b) times text { Pail })=(4 a times c+4 times b) )
sol 3 a) ( left[begin{array}{ll}5 & x & {[(-3) times(-4)}end{array}right]=left[begin{array}{l}5 times[12] 60end{array}right] )
also ( [[5 times(-3)] times(-4)]=[(-15) times(-4)] )
60
(hence prove
2) Mimelarly do for

# 3. Calculate and verify using the associative law: a) 15 x [(-3)*(-4)] b) [{-4) x(-6)] x'(-12)

Solution