Asked by Bobbie
How do I simplify (3√-5 + 2)(4√-12 – 1)
Answers
Answered by
oobleck
just use the distributive property as usual
(3√5 i + 2)(4√12 i-1)
(3√5i)(4√12i) + 2(4√12i) + (3√5i)(-1) + 2(-1)
12√60 i^2 + 8√12 i - 3√5 i - 2
-24*2√15 + (16√3-3√5)i - 2
-(30√15+2) + (16√3-√5)i
(3√5 i + 2)(4√12 i-1)
(3√5i)(4√12i) + 2(4√12i) + (3√5i)(-1) + 2(-1)
12√60 i^2 + 8√12 i - 3√5 i - 2
-24*2√15 + (16√3-3√5)i - 2
-(30√15+2) + (16√3-√5)i
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