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lubasha [3.4K]
3 years ago
14

Solve the following quadratic equation for all values of x in simplest form. 7+2x^2=11​

Mathematics
1 answer:
ollegr [7]3 years ago
6 0

Answer:

x=-\sqrt2\text{ or } x=\sqrt2

Step-by-step explanation:

We have:

7+2x^2=11

To solve, we will isolate the x variable. Therefore, subtract 7 from both sides:

2x^2=4\\

Divide both sides by 2:

x^2=2

Take the square root of both sides. Since we’re taking an event root, we will need plus/minus. Therefore:

x=\pm\sqrt2

Therefore, our solutions are:

x=-\sqrt2\text{ or } x=\sqrt2

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