Question

упростите 4c(c-2)-(c-4)²

Answer 1

$4 {c}^{2} - 8c - {c}^{2} + 8 {c} - 16 = 3 {c}^{2} - 16$

Answer 2

4с^2-8c-c^2+8c-16=3c^2-16