Question

Factorize:
a³ − 0.064

Answer 1

$$\begin{gathered} a^3-0.064={\left(a\right)}^3-{\left(0.4\right)}^3 \\ =\left(a-0.4\right)\left[a^2+a\times \left(0.4\right)+{\left(0.4\right)}^2\right] \\ =\left(a-0.4\right)\left(a^2+0.4a+0.16\right) \end{gathered}$$