Question
Factorise:
$2 x\left(p^2+q^2\right)+4 y\left(p^2+q^2\right)$
$2 x\left(p^2+q^2\right)+4 y\left(p^2+q^2\right)$
✓
Answer
$2\left(p^2+q^2\right)(x+2 y)$
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