Question
Solve:
$ 18 a^2 x^2-32 $
$ 18 a^2 x^2-32 $
✓
Answer
$ 18 a^2 x^2-32 $
$ =2\left(9 a^2 x^2-16\right) $
$ =2\left[(3 a x)^2-4^2\right] $
$ =2\left[(3 a x)^2-4^2\right] $
$= (3ax - 4)(3ax + 4)$$
$ =2\left(9 a^2 x^2-16\right) $
$ =2\left[(3 a x)^2-4^2\right] $
$ =2\left[(3 a x)^2-4^2\right] $
$= (3ax - 4)(3ax + 4)$$
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