Question

СРОЧНО! ЗАРАНЕЕ СПАСИБО!​

Answer 1

$3x - ay + bz = 70 {c}^{4} + 8 {c}^{3} - 3 {c}^{2} + 6\\ 3 \times (5 {c}^{3} + 2) - 3c \times (7 {c}^{2} - c + 11) + 14 {c}^{3} \times (5c - 1) = 15 {c}^{3} + 6 - 21 {c}^{3} - 3 {c}^{2} - 33c + 70 {c}^{4} + 14 {c}^{3} = 70 {c}^{4} + 8 {c}^{3} - 3 {c}^{2} + 6$