Which is a solution to (x – 3)(x + 9) = –27?

(x-3)(x+9)=-27

Simplify the left side by multiply each pair of parenthesis:

x^2 + 6x -27 = -27

Add 27 to both sides:

x^2 + 6x = 0

Factor X out of each term:

x(x+6) = 0

Set x equal t o zero"

x= 0

Set x+6 equal to zero and solve for x:

x +6 = 6

x = -6

The solution is X = 0 and -6

536

step-by-step explanation:

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.