dcyoung234 dcyoung234

22-04-2022
Mathematics

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

Respuesta :

georgepahno georgepahno

22-04-2022

Answer:

-3 or 10

Step-by-step explanation:

[tex]x(x - 7) = 30[/tex]

[tex] {x}^{2} - 7x = 30[/tex]

[tex] {x}^{2} - 7x - 30 = 0[/tex]

[tex](x - 10)(x + 3) = 0[/tex]

x = -3 or 10

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