If x=2, y= -5, and z= -1, then what does (x-y) (x+y-z) equal?
1 Answer
Explanation:
First, substitute the values of
Next, we remove unnecessary addition and subtraction signs to complete the expression.
#- and + = -# #- and - = +# #+ and + = +#
So
Next, we complete the expressions inside the brackets (order of operations).
Finally, to complete the expression, we carry out the multiplication: