2 years ago

2x - 6y = 12 2x – 4y = 8

Mathematics

1 answer:

Alenkasestr [34]2 years ago

7 0

Answer:

true

Step-by-step explanation:

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Answer:

Step-by-step explanation:

In the argand plane for plotting points of complex numbers we take i coefficient as x and j coefficient as y and plot as we plot regular points on the graph.

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const2013 [10]

Answer:

$x=\pm i\text{ or }x=\pm2i$

Step-by-step explanation:

So we have the equation:

$x^4+5x^2+4=0$

Let's let u be equal to x². So:

$u^2+5u+4=0$

Factor:

$(u+1)(u+4)=0$

Zero Product Property:

$u+1=0\text{ or } u+4=0$

Subtract:

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Replace:

$x^2=-1\text{ or }x^2=-4$

Take square root:

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Simplify:

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