I think the answer is 22mn2+66m2n-64 since there are no more like terms
Answer:
-300
Step-by-step explanation:
-21 = 7x/100
-21=7x/2^2*5^2
x=-300
False, they already have that as a rule in the order of operations. That’s what PEMDAS stands for. The E stands for Exponents.