Question

8(3а – 2b)^2 - 10(За – 2b)

Answer 1

Answer:

72a² + 128b² - 96ab - 30a + 20b

Step-by-step explanation:

8(3а – 2b)² - 10(За – 2b)

8(3a² - 12ab + 4b²) - 30a + 20b

8(9a² - 12ab + 16b²) - 30a + 20b

72a² - 96ab + 128b² - 30a + 20b

72a² + 128b² - 96ab - 30a + 20b

Hope it helps you....

Answer 2

Step-by-step explanation:

$8({9a {}^{2} + 4b {}^{2 } - 12ab)} - 30a - 20b \\ 72a {}^{2} + 32b {}^{2} - 96ab - 30a - 20b$

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