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Popular >

the square of a negative number is 15 more than twice the negative number. what is the number

Solution

the square of a negative number is 15 more than twice the negative number. what is the number

Solution

The number : - 3

Solution steps

Represent the number with

x

A.T.Q.:

x^{2} = 15 + 2 x

Solve for

x, x^{2} = 15 + 2 x : x = 5, x = - 3

Select negative solutions:

- 3

The number : - 3

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