Solve for x. use the completing the square method. 2x^2 +6x=5 round decimals to the nearest tenth. enter your answers in the boxes. x = or x =

add an image

step-by-step explanation:

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

the answer is 2/54

step-by-step explanation:

it is 10.6 according to my calculations