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SOLVE PLEASE -2x^2+18x+____

1 Answer

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In this case, we'll have to carry out several steps to find the solution.

Step 01:

Data

- 2x² + 18x + _________

Step 02:

(a + b) = a² + 2ab + b²

a² = -2x²


a\text{ = }\sqrt[]{-2\cdot x^(2)}\text{ = x }\sqrt[]{-2}


a\text{ = }\sqrt[]{2}i

2ab = 18x


2(x\sqrt[\text{ }]{-2)}\cdot\text{ b = 18 x}
b\text{ = }\frac{18x}{2x\sqrt[]{-2}}=\frac{9}{\sqrt[]{-2}}=\frac{9}{\sqrt[]{2\text{ }}i}

Two ways to express the solution:


\begin{gathered} -2x^{2\text{ }}+\text{ 18x + 9/}\sqrt[]{-2} \\ -2x^2+18x\text{ + 9 / }\sqrt[]{2}i \end{gathered}

User Xhallix
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