The mentioned equation is in which form?z−z7=4z+5

Given,z−z7=4z+5⇒zz2−7=4z+5⇒ z2−7=4z2+5z⇒ 3z2+5z+7=0The highest power of z is 2. Hence, it is a quadratic equation.

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The mentioned equation is in which form? z, -, {7}{z}, =, 4z,

Question

The mentioned equation is in which form?
$z - \frac{7}{z} = 4 z + 5$

Linear

Quadratic

cubic

None of these

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Jack Discussed

The mentioned equation is in which form?

z - \frac{7}{z} = 4 z + 5

7 mins ago

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7 mins ago

Given,

z - \frac{7}{z} = 4 z + 5

\Rightarrow \frac{z ^{2} - 7}{z} = 4 z + 5

\Rightarrow z^{2} - 7 = 4 z^{2} + 5 z

\Rightarrow 3 z^{2} + 5 z + 7 = 0

The highest power of z is 2. Hence, it is a quadratic equation.

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Question Text	The mentioned equation is in which form? $z - \frac{7}{z} = 4 z + 5$
Answer Type	Text solution:1
Upvotes	150