Answer:
x = 19.42
Step-by-step explanation:
8²+x²=21²
64+x²=441
-64 -64
x²=377
x=19.41648784
rounded is 19.42
Answer:
6xy(2x²-3y)
Step-by-step explanation:
factorized completely
Answer:
I think its 8
Step-by-step explanation:
because if you divided -40 by -5 then its 8