Question

K) (2a + c)² в) (m + 6n)² M) (56+4)² H) (x + 10)² o) (5c-d)² п) (4z-21)² p) (100 - 6)² c) (13- y)² т) (3а - 5)2​

Answer 1

Ответ:

Объяснение:

K) (2a + c)² = 4a² + 4ac + c²

в) (m + 6n)² = m² + 12mn + 36n²

M) (56+4)² = 3600

H) (x + 10)² = x² + 20x + 100

o) (5c-d)² = 25c² - 10cd + d²

п) (4z-21)² = 16z² - 168z + 441

p) (100 - 6)² = 88² = 7744

c) (13- y)² = 169 - 26y + y²

т) (3а - 5)² = 9a² - 30a + 25

Answer 2

Sure! I'll expand each of the given expressions for you:

K) (2a + c)² = (2a + c) * (2a + c) = 4a² + 2ac + 2ac + c² = 4a² + 4ac + c²

в) (m + 6n)² = (m + 6n) * (m + 6n) = m² + 6mn + 6mn + 36n² = m² + 12mn + 36n²

M) (56 + 4)² = (60)² = 3600

H) (x + 10)² = (x + 10) * (x + 10) = x² + 10x + 10x + 100 = x² + 20x + 100

o) (5c - d)² = (5c - d) * (5c - d) = 25c² - 5cd - 5cd + d² = 25c² - 10cd + d²

п) (4z - 21)² = (4z - 21) * (4z - 21) = 16z² - 84z + 84z - 441 = 16z² - 441

p) (100 - 6)² = (94)² = 8836

c) (13 - y)² = (13 - y) * (13 - y) = 169 - 13y - 13y + y² = y² - 26y + 169

т) (3a - 5)² = (3a - 5) * (3a - 5) = 9a² - 15a - 15a + 25 = 9a² - 30a + 25

I hope that helps! Let me know if you have any other questions.