Answer:
(5x-6)²=25x²-60x+36
Step-by-step explanation:
We use: (a-b)²=a²-2ab+b².
Thus we get
Expand((5⋅x−6)2)
=62+2⋅(−6⋅5⋅x)+(5⋅x)2
=36−60⋅x+25⋅x2
