Which of the following is not a quadratic equation? (1) 3x2 - 2 = 0 (2) 7x2 - 4x = 0 (3) 6x2 = 0 (4)

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In algebra, a quadratic equation is a second-order equation that can be rearranged in standard form as: ax2 + bx + c = 0 In this equation, x represents an unknown value, and a, b, and c represent known numbers, where a ≠ 0. The term "quadratic" comes from the Latin word "quadratus" which means square. This refers to the fact that the variable x is squared in the equation. Not every quadratic equation is in standard form. Here are some examples of non-standard quadratic equations: - Missing the linear coefficient - Missing the constant termRelated Tests:  Algebra Practice Test: Linear... Show more

Which of the following is not a quadratic equation? (1) 3x2 - 2 = 0 (2) 7x2 - 4x = 0 (3) 6x2 = 0 (4) <img alt='49463.png' src='https://www.fatskills.com/math-simplified/49463.png'/>