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• Identical expressions

• - four + one /(two *sqrt(x)) = zero
• minus 4 plus 1 divide by (2 multiply by square root of (x)) equally 0
• minus four plus one divide by (two multiply by square root of (x)) equally zero
• -4 + 1/(2*√(x)) = 0
• -4 + 1/(2sqrt(x)) = 0
• -4 + 1/2sqrtx = 0
• -4 + 1 divide by (2*sqrt(x)) = 0

• Similar expressions

• -4 - 1/(2*sqrt(x)) = 0
• 4 + 1/(2*sqrt(x)) = 0