27kspirsch 27kspirsch
  • 08-11-2021
  • Mathematics
contestada

A negative number is 42 less than it’s square.

Respuesta :

keziahaugust18
keziahaugust18 keziahaugust18
  • 08-11-2021

Answer:

Let x = the number

A negative number is 42 less than its square ⇒

x = x2 - 42

x2 - x - 42 = 0

(x - 7)(x + 6) = 0

x = 7 or -6

But since it is given that x is negative, the final answer is x = -6.

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