Question

solve the quadratic equations by factorisation method : x2-9=0​

Answer 1

x^2-9=0

= x^2=0+9

= x^2=9

x= √9

x=3

Answer 2

Answer:

(x) ^2 - (3) ^2 = 0

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

applying Zero product rule

if x + 3 = 0

x = -3(Answer)

if x - 3 = 0

x = 3(Answer)