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Popular >

seven times a certain number is 5 more than twice its square. find the number

Solution

seven times a certain number is 5 more than twice its square. find the number

Solution

The number : 2 \frac{1}{2} or 1

Solution steps

Represent the number with

x

A.T.Q.:

7 x = 5 + 2 x^{2}

Solve for

x, 7 x = 5 + 2 x^{2} : x = \frac{5}{2}, x = 1

Convert improper fractions to mixed numbers:

\frac{5}{2} = 2 \frac{1}{2}

The number : 2 \frac{1}{2} or 1

Popular Examples

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