Try to calculate them in your head and if that doesn't help use a calculator. I hope this helps
X=4 or X=-4 because 4(4)^2 does =64
Your answer would be x=-10.5
First distribute -2/3 to 3x and -9
-2x+6=15
Then subtract 6 from both sides
-2x=9
Divide both sides by -2
x=-4.5
5(700)+(50)+(4)that’s how you write it
