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प्रश्न
Multiply: `2"a"^3-3"a"^2"b"` and `-1/2"ab"^2`
बेरीज
उत्तर
`(2"a"^3-3"a"^2"b")(-1/2"ab"^2)`
= `-1/2"ab"^2 (2"a"^3-3"a"^2"b")`
= `2"a"^3xx-1/2"ab"^2-3"a"^2"b"xx-1/2"ab"^2`
= `-"a"^4"b"^2+3/2"a"^3"b"^3`
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