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Just simply rewrite the given equation to its standard form of quadratic equation then find the value of a, b and c
x^2 + 2 = 5 - 2x^2
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Move the terms from the right to the left side, changing the sign.
Then combine common terms.
You will get
3x^2 - 3 = 0.
It is just in the standard form.
a= 3, b= 0, c= -3.
Solved, answered, explained and completed.
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Ignore the post by @MathLover1, since it is WRONG.