Help Me please!!

Word problem

When 5 is added to a certain number, and also taken from that number, the product of the result is 75. find that number

ManuelBautista2019
Mar 1, 2018

#1**+2 **

Let x be the number. Then:

(x-5)(x+5) = 75

x^{2} - 25 = 75

x^{2} = 100

x = 10.

(x = -10 is also a solution)

Alan
Mar 1, 2018

#2**0 **

sorry don't understand "the product of the result is 75".to have a product you need at least 2 numbers

Guest Mar 1, 2018