Multiple Choice Question (MCQ)
Solve for x: \sqrt{x^2+3} = x + 1
-
×
\pm1
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✓
1
-
×
-1
-
×
2
-
×
no solution
Solve for x: \sqrt{x^2+3} = x + 1
\pm1
1
-1
2
no solution
\sqrt{x^2+3} = x + 1
Square both sides to remove radical
(\sqrt{x^2+3} )^2=(x+1)^2
Expand perfect square polynomial
x^2+3 = x^2+2x+1
Combine the like terms
2 = 2x
Divide both sides by 2
x = 1