Question

product of (5a^2-2ab+3b^2) (3a-4b)

Answer 1

Hope u like my process
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$= > \bf \: (5 {a}^{2} - 2ab + 3 {b}^{2} )(3a - 4b) \\ \\ = 5 {a}^{2} (3a - 4b) - 2ab(3a - 4b) + 3 {b}^{2} (3a - 4b) \\ \\ = 15 {a}^{3} - 20 {a}^{2} b - 6 {a}^{2} b + 8a {b}^{2} + 9a {b}^{2} - 12 {b}^{3} \\ \\ = \bf \: 15 {a}^{3} - 26 {a}^{2} b + 17a {b}^{2} - 12 {b}^{3}$
If further simplification requires.. Then inform me.
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Hope this is ur required answer

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Answer 2

here's ur answer
(5a² - 2ab + 3b²) (3a - 4b)
= 15a³ - 6a²b + 9ab² - 20a²b + 8ab² - 12b³
= 15a³ -12b³ - 26a²b + 17ab²