Question

X^2+ 3 has a value of 28. What term in the sequence has a value of 28?

Answer 1

The value of X1 is -5, X2 is +5.

Answer 2

5th term

Explanation:

x^2 +3 = 28

Subtract 3 from each side

x^2+3-3 =28-3

x^2 = 25

Take the square root of each side

sqrt(x^2) = sqrt(25)

x = 5

(x could be -5, but there are not usually negative terms in a sequence)