Question

maths find answer plz​

Answer 1

Step-by-step explanation:

2nd)

(-4)^5×(-4)^-10

a^m×a^n=a^m+n

(-4)^5+(-10)

=(-4)^-5

sorry

I know only this much

In 1st question the power of the numbers is not visible properly

Answer 2

1) (⅔)^-2

= (3/2)²

= 9/4

2) (-4)⁵×(-4)^-10

= (-4)^5-10

= (-4)^-5

= (-¼)⁵

= -1/256

3) (-3)^m+1×(-3)⁵ = (-3)⁷

=) (-3)^m+6 = (-3)⁷

Comparing

m+6 = 7

=) m = 7-6 = 1

4) 8^-1 × 5³/ 2^-4

= 2^-4 × 5³/ 2^-4

= 5³

= 125