Question

Expand and Simplify:-

(4c+d)(4c-d)(2c-⅕d)​

Answer 1

Answer:

Step-by-step explanation:

(a+b)(a-b)=$a^{2}$-$b^{2}$

so (4c+d)(4c-d)=16$c^{2}$-$d^{2}$

therefore

(16$c^{2}$-$d^{2}$)(2c-1/5d)=$32c^{3}-cd(16c/5-2d)+d^{2}/5$