Question

Solve :

2i(3 + 4i) + 5i(4 - 3i)

Answer 1

Hey friend..!! here's your answer
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$2i(3 + 4i) + 5i(4 - 3i) \\ \\ 6i + {8i}^{2} + 20i - {15i}^{2} \\ \\ we \: know \: that \: {i}^{2} = - 1 \\ \\ 6i - 8 + 20i + 15 \\ \\ 7 + 26i$

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#Hope its help

Answer 2

Holla ^_^

☸ Required Answer is ⬇ ⬇⬇ ⬇

Given,

=> 2i(3 + 4i) + 5i(4 -3i)

=> 6i+8i² + 20i - 15i²

=> -7i² + 26i

Value of i² = -1

=> 26i + 7

Vielen Dank ♥