The product of a number and 7 less than the number is 30. Find the number.

David Maze asked Feb 21, 2023

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David Maze asked Feb 21, 2023

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22 votes

Answer:

-3 or 10

Explanation:

x(x - 7) = 30

${x}^(2) - 7x = 30$

${x}^(2) - 7x - 30 = 0$

(x - 10)(x + 3) = 0

x = -3 or 10

Confusified answered Feb 27, 2023

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