Question

X²-15X+54=0 solve quadratic equation using quadratic formula​

Answer 1

Answer:

X2-15X+54 =0

compare with ax2+bx+c= 0

a=1 b= - 15 c=54

b2-4ac = (-15)२-4×1×54

b२-4ac =225-216

b२-4ac =9

hope it helps 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.