Answer:
-3x²+18x-27
Step-by-step explanation:
Given :
-3X²+18x
perfect square : (a+b)²=a² + 2ab + b²
[tex]\frac{-3x^{2} }{-3} +\frac{18x}{-3} ... something else[/tex] divide by -3 to have just a² type
x² -6x ...and something
compare with the perfect squere formula and we know a² is x² , a is x, so second term is 2xb and is -6x so b= -3
x²-6x+9 = (x-3)²
if you reverse and multiply by (-3) we have
-3x²+18x-27
