Evaluate
-7\sqrt{5}j+14i
Quiz
Complex Number
5 problems similar to:
= 21 ( \frac { 2 } { 3 } i - \frac { \sqrt { 5 } } { 3 } j )
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21\left(\frac{2}{3}i-\frac{\sqrt{5}j}{3}\right)
Express \frac{\sqrt{5}}{3}j as a single fraction.
14i+21\left(-\frac{\sqrt{5}j}{3}\right)
Use the distributive property to multiply 21 by \frac{2}{3}i-\frac{\sqrt{5}j}{3}.
14i-7\sqrt{5}j
Cancel out 3, the greatest common factor in 21 and 3.
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