Answer:
216
Step-by-step explanation:
put -3 where x is
3 ( 5 -3^2 - 9(-3) )
3 ( 45 + 27 )
3 (72)
3(5x^2-9x)
3( 5 (-3)^2 - 9(-3))
3( 5 (9) - (-27))
3( 45-(-27))
3(72)
