【GMAT考满分数学PS题库】Which of the following is NOT equivalent to $${49}_真题_答案_解析 GMAT考满分官网

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题目内容

Which of the following is NOT equivalent to

${49}({a}^{2})={9}({b}^{2})-{4}$ ?

${49}{a}^{2}+{4}={9}{b}^{2}$
${98}{a}^{2}={18}{b}^{2}-{8}$
${49}{a}^{2}=({3}{b}-{2})({3}{b}+{2})$
${a}^{2}=\frac{9b^2-4}{7^2}$
E7a = 3b-2

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正确答案: E

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