16-02-2020
Mathematics

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Subtract – 9x – 7 from 8x² – 5x + 9.

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KillerBlade KillerBlade

16-02-2020

8x² – 5x + 9 - (-9x-7)

=8x² – 5x + 9 + 9x + 7

=8x² + 4x +16

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