algebra II

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mashra mashra
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algebra II

Simplify: (5i+1)(3i−2)−/-2/-2-4i^5+i^3

Please help with this problem, thank you.  These, /, are square roots.  So square root-2 square root-2

Proof Proof
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Re: algebra II

LR17 wrote
Simplify: (5i+1)(3i−2)−/-2/-2-4i^5+i^3

Please help with this problem, thank you.  These, /, are square roots.  So square root-2 square root-2
(5i + 1)(3i - 2) - √(-2) √(-2) - 4i^5 + i³
=  (15i² - 7i - 2) - (2i)(2i) - 4i^5 + i³   ← foil method and simplified square roots
=  15i² - 7i - 2 - 4i² - 4i^5 + i³   ← removed parentheses and multiplied
=  -4i^5 + i³ + 11i² - 7i - 2   ← combined like terms

- Proof