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Multiply (i) (a+7) and (b-5) (ii) (...

Multiply
(i) `(a+7) and (b-5)`
(ii) `(a^2+2b^2) and (5a-3b)`

Text Solution

Verified by Experts

`(i) (a+7)and(b−5) `
`=(a+7)(b−5) `
`=a(b−5) +7(b−5) `
`=ab-5a+7b-35`
`(ii) (a^2+2b^2)and(5a−3b)`
`=a^2(5a−3b)+2b^2(5a−3b)`
`=5a^3-3a^2b+10ab^2-6b^3`
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