Question

Solve :
 (x+5)(x-5)=24 

Answer 1

Given: (x+5)(x-5)=24

`=> x^2 - 5^2 = 24`      .............since (a - b) (a + b) = a² - b²
`=> x^2 - 25 = 24`
`=> x^2 = 49`
`=> x = ± 7`