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10-02-2020
Mathematics

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17-02-2020

Option 2) -2a² + 3a -6 is the correct answer.

Step-by-step explanation:-

3a² -2a +5 is subtracted from a² + a -1

a² + a -1

-(3a² -2a +5)

-2a² +3a -6

Multiply the -ve sign to each term of the expression and then perform the operation.

∴ The answer is -2a² + 3a - 6

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