Answer:
This can be expanded to x⁴ - 6x²
Step-by-step explanation:

We can round 5.65 up to 6 and 3.4 down to 3.
3 * 6 = 18
now let's see how close our estimate is to the real answer
5.65 * 3.4 = 19.21
Our answer was pretty close to the real answer!
Hope I helped!
~ Zoe
Bom dia o sou já nasceu lá na fazendinha (8,5) é esse
2kg=2000g so do 275/2000 and cancel down to 11/80 :)