prattalicia prattalicia

02-04-2017
Mathematics

contestada

(5x 4 – 3x 3 + 6x) – ( 3x 3 + 11x 2 – 8x)

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jenniehammons8 jenniehammons8

02-04-2017

5x⁴ - 3x³ + 6x) - (3x³ + 11x² - 8x)

Expand the second bracket by multiplying throughout by -1
5x⁴ - 3x³ + 6x - 3x³ - 11x² + 8x

Group like terms and simplify
5x⁴ - 3x³ - 3x³ - 11x² + 6x + 8x

5x⁴ - 6x³ - 11x² + 14x

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adilpmohammad adilpmohammad

02-04-2017

14x - 20 <------------------ answer.
Hope this helps!

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