मराठी

Add the following expressions: 58p4+2p2+58;18-17p+98p2 and p5-p3+7 - Mathematics

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प्रश्न

Add the following expressions:

`5/8p^4 + 2p^2 + 5/8; 1/8 - 17p + 9/8p^2` and `p^5 - p^3 + 7`

बेरीज

उत्तर

We have, `(5/8p^4 + 2p^2 + 5/8) + (1/8 - 17p + 9/8p^2) + (p^5 - p^3 + 7)`

= `5/8p^4 + 2p^2 + 5/8 + 1/8 - 17p + 9/8p^2 + p^5 - p^3 + 7`

On combining the like terms,

= `p^5 + 5/8p^4 - p^3 + (2 + 9/8)p^2 - 17p + (5/8 + 1/8 + 7)`

= `p^5 + 5/8p^4 - p^3 + ((16 + 9)/8)p^2 - 17p + ((5 + 1 + 56)/8)`

= `p^5 + 5/8p^4 - p^3 + 25/8p^2 - 17p + 62/8`

= `p^5 + 5/8p^4 - p^3 + 25/8p^2 - 17p + 31/4`

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पाठ 10: Algebraic Expressions - Exercise [पृष्ठ ३२०]

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एनसीईआरटी एक्झांप्लर Mathematics [English] Class 7
पाठ 10 Algebraic Expressions
Exercise | Q 57. (i) | पृष्ठ ३२०

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