The value of the expression is -256
To solve , substitute, the values of m and n into the expression given :
Now we have :
-4(-5 - 3)²
-4(-8)²
-4(64)
= -256
Therefore, the value of the expression is -256
Complete Question :
What is the value of this expression when m=-5 and n=3 ？ -4(m-n)²