Question

упростите а) 5c²d-2c²d+c³d+2c³d

Answer 1

$5 {c}^{2} d - 2 {c}^{2} d + {c}^{3} d + 2 {c}^{3} d = 3 {c}^{2} d + 3 {c}^{3} d$