3 years ago

What is the product?

2 answers:

7 0

Answer:

${ \tt{(5r - 4)( {r}^{2} - 6r + 4) }} \\ = { \tt{( {5r}^{3} - {30r}^{2} + 20r - 4 {r}^{2} + 24r - 16) }} \\ = { \tt{ {5r}^{3} - 34 {r}^{2} + 44r - 16 }}$

Vladimir [108]3 years ago

7 0

Answer:

5r³ - 34r² + 44r - 16

Step-by-step explanation:

$\small \sf \: (5r − 4)(r² − 6r + 4)$

use the distributive property

5r × (r² − 6r + 4) - 4× (r² − 6r + 4)

5r³ - 30r² + 20r - 4r² + 24r - 16

combine like terms

5r³ - 30r² - 4r² + 20r + 24r - 16

5r³ - 34r² + 44r - 16

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