bruh369 bruh369
  • 30-05-2019
  • Mathematics
contestada

The square of a number is 12 less than 7 times the number.whats the number

Respuesta :

adrian25moreno adrian25moreno
  • 30-05-2019

Answer:

let the number = x

Given

The square of a number is 12 less than 7 times the number.

x²=7x-12

or x²-7x+12=0

or. x²-3x-4x+12=0

or x(x-3) -4(x-3)=0

or (x-3) (x-4)=0

or x=3

or x=4

Required number may be 3 or 4

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