P(x)=x2+x√a2−7+x+1. What is the value of "a" if the degree of P(x)

1.	P(x)=x2+x√a2−7+x+1. What is the value of "a" if the degree of P(x) is 3?
Answer» $P (x) = x^{2} + x^{\sqrt{a^{2} - 7}} + x + 1$ . What is the value of "a" if the degree of P(x) is 3?

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