5c2(c + 10) + -4(2c2 + -6c + 1)
Reorder the terms:
5c2(10 + c) + -4(2c2 + -6c + 1)
(10 5c2 + c 5c2) + -4(2c2 + -6c + 1)
(50c2 + 5c3) + -4(2c2 + -6c + 1)
Reorder the terms:
50c2 + 5c3 + -4(1 + -6c + 2c2)
50c2 + 5c3 + (1 -4 + -6c -4 + 2c2 * -4)
50c2 + 5c3 + (-4 + 24c + -8c2)
Reorder the terms:
-4 + 24c + 50c2 + -8c2 + 5c3
Combine like terms: 50c2 + -8c2 = 42c2
-4 + 24c + 42c2 + 5c3