Question

if four times a whole number is subtracted from three times the square of the number , the result is 15. find the number

Answer 1

Answer:

the number is 3

Step-by-step explanation:  let the no be x

3x²-4x=15

3x²-4x-15=0

3x²-9x+5x-15=0                product= 45 , sum= -4

3x( x-3)+5 ( x-3)=0

(3x+5)  (x-3)   =0

x= -3\5 or 3

but since it is given a whole no x=3

                               

                                 HOPE THIS IS GOOD

                                 PLEASE MARK IT THE BRAINLIEST!!!!:>