Find the product:
(iii) (mn-kl+km) (kl-Im)
(ii) (a-26+3c)(ab?-(b)
(iv) (p’+q)(p-5q+6r)
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iii ( mn-kl +km)×( kl-lm)
by distributive property
=[{kl-lm) ×mn] - [(kl -lm )×kl] +[(kl-lm) ×lm ]
=[mnkl-m²nl] - [k²l²-kl²m]+ [ kl²m -l²m²]
=mnkl -m²nl-k²l²+kl²m +kl²m -l²m²
=mnkl -m²nl -k²l² +2kl²m- l²m²
sorry ,,, I don't know if and iv ...
sorry
sorry....
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