Question

Please Help me
Will Mark Brainliest ​

Answer 1

Answer:

a.. 6m

b..a^2/6b^4

Step-by-step explanation:

a..... 6m^4+(-5)÷m^-2

6m^-1/m^-2

So, 6m^-1+2

6m^+1

6m ans

b..... 4a^2b^2/21a^4b^5÷ 8ab^4/7a^5b^3

now cancel out the common we get,

4/21a^2b^3÷ 8b^1/7a^4

now to apply multiply sign reciprocal the right part

4/21a^2b^3×7a^4/8b^1

again cancel out

we get,

a^2/6b^4