8𝑎^3 − 𝑏^3 − 4𝑎𝑥 + 2𝑏𝑥
8𝑎^3 − 𝑏^3 − 4𝑎𝑥 + 2𝑏𝑥
According to the equation,
𝑎^3 − 𝑏^3 = (𝑎 − 𝑏)(𝑎^2 + 𝑎𝑏 + 𝑏^2)
So we get,
8𝑎^3 − 𝑏^3 − 4𝑎𝑥 + 2𝑏𝑥
= (2𝑎)^3 − 𝑏^3 − 2𝑥(2𝑎 − 𝑏)
= (2𝑎 − 𝑏)((2𝑎)^2 + (2𝑎)𝑏 + 𝑏^2) − 2𝑥(2𝑎 − 𝑏)
On further simplification
= (2𝑎 − 𝑏)(4𝑎^2 + 2𝑎𝑏 + 𝑏^2) − 2𝑥(2𝑎 − 𝑏)
= (2𝑎 − 𝑏)(4𝑎^2 + 2𝑎𝑏 + 𝑏^2 − 2𝑥)
Lido
Courses
Quick Links
Terms & Policies
Terms & Policies