MalanaK510338 MalanaK510338

26-10-2022
Mathematics

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simplify (5x - 6.9)(2x + 12.2)

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NazaninU572618 NazaninU572618

26-10-2022

You have the following expression:

(5x - 6.9)(2x + 12.2)

use the distribution property in the previous factors:

(5x - 6.9)(2x + 12.2) =

5x(2x) + 5x(12.2) - 6.9(2x) - 6.9(12.2) =

10x² + 61x - 13.8x - 84.18 =

10x² + 47.2 - 84.18

Hence, the simplfied expression is 10x² + 47.2 - 84.18

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