How sq ft in a room 12 x 12

What expression is equivalent to (2x-1)(x-3)?

Simplify each expression. use positive exponents. show work . (x –2 y –4 x 3 ) –2

X= 3y - 6 2x - 4y = 8 solve the system of equations using substitution. a) (-12,-2) b) (15,7) c) (21,9) d) (24,10)