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• Identical expressions

• (x + two)^(- two) = zero
• (x plus 2) to the power of ( minus 2) equally 0
• (x plus two) to the power of ( minus two) equally zero
• (x + 2)(-2) = 0
• x + 2-2 = 0
• x + 2^-2 = 0

• Similar expressions

• (x - 2)^(-2) = 0
• (x + 2)^(2) = 0