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Flura [38]
1 year ago
6

I need help with a problem with solving by square roots in quadratic equation.

Mathematics
1 answer:
Readme [11.4K]1 year ago
4 0

To solve for x, first, we add 3 to the given equation:

\begin{gathered} 2(x+5)^2-3+3=44+3, \\ 2(x+5)^2=47. \end{gathered}

Dividing by 2, we get:

(x+5)^2=\frac{47}{2}.

Therefore:

x+5=\pm\sqrt{\frac{47}{2}}.

Finally, subtracting 5 we get:

x=\pm\sqrt{\frac{47}{2}}-5.

Answer:

x=\operatorname{\pm}\sqrt{\frac{47}{2}}-5.

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Hi there!

\large\boxed{(5,8) \text{ and } (1.2, -2.78)}}

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