Find the product:
(i) (x+y)(2x−5y+3xy)
(iii) (a−2b+3c)(ab²−a²b)
(ii) ( mn−kl+km)(kl−lm)
(iv) (p³+q³)(p−5q+6r)
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Step-by-step explanation:
(I)
=x(2x-5y+3xy)+y(2x-5y+3xy)
=2x²-5xy+3x²y+2xy-5y²+3xy²
=2x²-3xy+3x²y-5y²+3xy²
(ii)
= a(ab²-a²b)-2b(ab²-a²b)+3c(ab²-a²b)
= a²b²-a³b-2ab³+2a²b²+3ab²c-3a²bc
= 3a²b²-a³b-2ab³+3ab²c-3a²bc
iii)
=kl(mn-kl+km)-lm(mn-kl+km)
=klmn-k²l²+k²ml-m²ln+kl²m-m²kl
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the ans wer is here in the photo
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