briannasobo13 briannasobo13

12-03-2020
Mathematics

contestada

The difference of the square of a number and 4 is equal to 3 times that number. Find
the negative solution.

Respuesta :

PollyP52 PollyP52

14-03-2020

Answer:

The negative solution is -1.

Step-by-step explanation:

If the number is x then:

x^2 - 4 = 3x

x^2 - 3x - 4 = 0

(x - 4)(x + 1) = 0

x = 4, -1.

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