Question

solve the following quadratic equation by factorisation

x²-15x+54=0
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Answer 1

Answer:

x^2 - 15x + 54 =0

x^2 - 9x - 6x +54 =0

x ( x-9) - 6 ( x -9 )=0

(x-6) (x-9) =0

hope this will help you

Answer 2

Answer:

X² – 15x + 54 = 0

⇒ x² - 9x - 6x + 54 = 0

⇒ x (x - 9) - 6 (x - 9) = 0

⇒ (x - 6) (x - 9) = 0

⇒ (x - 6) = 0 or (x - 9) = 0

⇒ x = 6 or x = 9

So, 6 and 9 are the roots of the given quadratic equation.