Question

How do you solve `27a ^ { 2} - 16= 2a ^ { 2}`?

Answer 1

See below.

Explanation:

We have `27a^2−16=2a^2`.
Substract `2a^2` on both sides, then add `16` to both sides.
`25a^2=16`
`a^2=frac(16)(25)`
`a=\pmfrac(4)(5)`