What is the coefficient of the third term of the polynomial? (In other words, what is C?) (x + 2)(x² −3x − 2) = x³ −x² −Cx − 4

Answer = 8

See the attached photo

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

b, 20 yards

step-by-step explanation: