If \( \sqrt{x^2 + 9} = x + 1 \), solve for x

Assessment: JAMB UTME - Mathematics - 1993 Subject: General Mathematics

Question 1 Report

If \( \sqrt{x^2 + 9} = x + 1 \), solve for x

Answer Details
x 2 + 9  = x + 1
x2 + 9 = (x + 1)2 + 1
0 = x2 + 2x + 1 - x2 - 9
= 2x - 8 = 0
2(x - 4) = 0
x = 4

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