Question

Evaluate : 9⁴xa⁷b⁴/3⁵xa⁴b⁴

Answer 1

`(9^4\cdot xa^7\cdot b^4)/(3^5\cdot xa^4\cdot b^4)`
`9^4=3^8`
`(3^8\cdot xa^7\cdot b^4)/(3^5\cdot xa^4\cdot b^4)`
`3^{8\text{ - 5}}\cdot a^{7\text{ - 4}}`
`3^3\cdot a^3\text{ }\Rightarrow27a^3`