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Multiply (2 sqrt(-3) +3sqrt(-2)) by (4sq...

Multiply `(2 sqrt(-3) +3sqrt(-2)`) by `(4sqrt(-3) -5sqrt(-2))`

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`(2 sqrt(-3) +3sqrt(-2)` by `(4sqrt(-3) -5sqrt(-2))`
`=(2 sqrt(3i)+3sqrt(2i))(4sqrt(3i-5 sqrt(2i)`
`i^2(2 sqrt3+3sqrt2)(4sqrt3-5sqrt2)`
`=-1(24-10sqrt6+12sqrt6-30)`
`=-1(-6+2sqrt6)=6-2sqrt6`
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