Question

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

Answer 1

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