Question

Solve the quadratic equation by factorization method x^2-9=0

Answer 1

Answer:

x^2+9=0

x^2+3^2=0

(square root hoth sides)

x=+or -3

Answer 2

SOLUTIONS:

Solving the above given equation by factorisation method.

Given: x² - 9 = 0

⇒ x² - 9 = 0

⇒ x² - 3² = 0

Since, ( a² - b² ) = ( a + b ) ( a - b )

⇒ ( x + 3 ) ( x - 3 )