Answer:
The value of a is 10 and the value of b is 6
Explanation:
* Lets revise how to solve the problem
- Remember in the number with exponent
- a^n × a^m = a^(n + m)
- a^n ÷ a^m = a^(n - m)
Lets solve the problem
∵
![(7^(2).7x^(8))/(7x^(4))](https://img.qammunity.org/2020/formulas/mathematics/high-school/1evm4w0ogu2aus8nbc9akr1r58dz39qhef.png)
- Lets use the rule above
∵
![7^(2).7^(8)=7^(2+8)=7^(10)](https://img.qammunity.org/2020/formulas/mathematics/high-school/6cdntfw6zdwiu6yyims3owaeaqgmsbzf2w.png)
∴
![(7^(2).7^(8))/(x^(4))=(7^(10))/(7^(4))](https://img.qammunity.org/2020/formulas/mathematics/high-school/n73fv3rrpzrkcxqt30za347i9v7hjowrz7.png)
∵
![(7^(10))/(7^(4))=(7^(a))/(7^(4))](https://img.qammunity.org/2020/formulas/mathematics/high-school/ajmto8vttgedfv2qp7i66cd2zqpnvv288v.png)
∴ a = 10
∵
![(7^(10))/(7^(4))=7^(10-4)=7^(6)](https://img.qammunity.org/2020/formulas/mathematics/high-school/kb8h6zs0xjs7vq3343j0wk9mwxso2q3tm7.png)
∵
![7^(6)=7^(b)](https://img.qammunity.org/2020/formulas/mathematics/high-school/1dbug3jvrrcfqrkxwcu0wdf957q6i2xj1n.png)
∴ b = 6
* The value of a is 10 and the value of b is 6