I got the same answer as you. Try to ask your teacher about it since it’s a math problem online or something.
-2x·-2x·(-5x·-5x+4x·4x·4x) Basically, you write out the number depending on the exponent. So if you have a power/exponent of 3, you write it out multiplied by itself 3 times. Hope this helps!
T\The answer would be 3 6/10, or 3.6.
→ 
8 and 10 can both be divided by 2. So, 8 ÷ 2 is 4 and 10 ÷ 2 is 5.
Hope this helps :)
Multiplication would be the inverse operation of division. so it would be, 3 x 34 = 102
