Question:
The area of a rectangular computer chip is 112a^3b^2 square microns. Write a simplified expression that represents the length, if the width is 8ab
Answer:
![Length = 14a^2b](https://img.qammunity.org/2022/formulas/mathematics/high-school/pfdodg2k7a3dk9cx3d6pt1v1f1kfica9c9.png)
Explanation:
Given
![Area = 112a^3b^2](https://img.qammunity.org/2022/formulas/mathematics/high-school/ijaive8bmxuu4ypb1kfwxd7dqts8m3ol30.png)
![Width = 8ab](https://img.qammunity.org/2022/formulas/mathematics/high-school/p64ek6wk7gs6ks8zwif0kgluqjnwtltndk.png)
Required
Determine the height
Area is calculated as:
![Area = Length * Width](https://img.qammunity.org/2022/formulas/mathematics/college/14jjiqkh69peazba6khve5dmx2929knauy.png)
Make Length the subject
![Length = (Area)/(Width)](https://img.qammunity.org/2022/formulas/mathematics/college/wqpjj8j2wo2ccxve6klbyi27fl76hkxhsl.png)
![Length = (112a^3b^2)/(8ab)](https://img.qammunity.org/2022/formulas/mathematics/high-school/gpckn1vnkiq38yldylx7gwcxu9kknr0n2t.png)
![Length = (14a^3b^2)/(ab)](https://img.qammunity.org/2022/formulas/mathematics/high-school/na29p3dya6jksjdbrykgsfljiexnubjgcu.png)
Apply law of indices
![Length = 14a^(3-1)b^(2-1)](https://img.qammunity.org/2022/formulas/mathematics/high-school/nfhz9pg19ng1ynt9d4bk0idwb2gkq1fb38.png)
![Length = 14a^2b](https://img.qammunity.org/2022/formulas/mathematics/high-school/pfdodg2k7a3dk9cx3d6pt1v1f1kfica9c9.png)