barirahsid barirahsid

24-08-2021
Mathematics

contestada

expand or simplify
3c(5+c) -2(3c-7)

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MisterZeng MisterZeng

24-08-2021

3c(5+c) -2(3c-7)
15c+3c^2-6c+14
9c+3c^2+14

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Аноним Аноним

24-08-2021

Answer:

It is 3c² + 9c + 14

Step-by-step explanation:

[tex]3c(5 + c) - 2(3c - 7)[/tex]

open the brackets:

[tex] = (15c + 3 {c}^{2} ) - (6c - 14) \\ = (15c + {3c}^{2} ) - 6c + 14[/tex]

express in quadratic equation:

[tex]3 {c}^{2} + 9c + 14[/tex]

Answer Link

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