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受欢迎的 Word Problems >

Four times a number is equal to twice its square. What is the number?

解答

F o u r t im es a n u mb er i s e q u a l t o tw i ce i t s s q u a re . Wha t i s t h e n u mb er ?

解答

The number : 0 or 2

求解步骤

Represent the number with

x

A.T.Q.:

4 x = 2 x^{2}

求解

x, 4 x = 2 x^{2} : x = 0, x = 2

The number : 0 or 2

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