Multiply: 2"A"^3-3"A"^2"B" and -1/2"Ab"^2 - Mathematics

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Sum

Multiply: `2"a"^3-3"a"^2"b"` and `-1/2"ab"^2`

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Solution

`(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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APPEARS IN

Selina Concise Mathematics Class 8 ICSE
Chapter 11 Algebraic Expressions
Exercise 11 (C) | Q 1.17 | Page 143
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