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• Identical expressions

• fifteen *x^ four + thirty *x^ two + fifteen = zero
• 15 multiply by x to the power of 4 plus 30 multiply by x squared plus 15 equally 0
• fifteen multiply by x to the power of four plus thirty multiply by x to the power of two plus fifteen equally zero
• 15*x4 + 30*x2 + 15 = 0
• 15*x⁴ + 30*x² + 15 = 0
• 15*x to the power of 4 + 30*x to the power of 2 + 15 = 0
• 15x^4 + 30x^2 + 15 = 0
• 15x4 + 30x2 + 15 = 0

• Similar expressions

• 15*x^4 + 30*x^2 - 15 = 0
• 15*x^4 - 30*x^2 + 15 = 0