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Subtract the following expressions: 2(ab + bc + ca) from –ab – bc – ca - Mathematics

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प्रश्न

Subtract the following expressions:

2(ab + bc + ca) from –ab – bc – ca

योग

उत्तर

We have, –ab – bc – ca – 2(ab + bc + ca) = –ab – bc – ca – 2ab – 2bc – 2ca

On combining the like terms,

= –ab – 2ab – bc – 2bc – ca – 2ca

= –3ab – 3bc – 3ca

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अध्याय 10: Algebraic Expressions - Exercise [पृष्ठ ३२१]

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एनसीईआरटी एक्झांप्लर Mathematics [English] Class 7
अध्याय 10 Algebraic Expressions
Exercise | Q 58. (h) | पृष्ठ ३२१
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