Question

Find the roots of the following equations using factorisation method.
(ii)
x² – 5x+6=0
(i) x2 + 5x + 6 = 0
(ii) x² + 5x - 6= 0
(iv)
x² – 5x – 6=0​

Answer 1

Answer:

[2] x^2 + 5x - 6 = 0

  x^2 - 1x + 6x - 6 = 0

  x( x - 1) + 6 ( x - 1 )=0

 (x + 6)(x - 1) = 0

x= 6 , -1

[1] x² + 5x +6= 0

  x² + 2x + 3x + 6x + 6 = 0

 x(x + 2 ) + 3(x+2) = 0

 (x+2)(x+3)=0

x= 2,3

ii)

x² – 5x+6=0

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

x=-2,-3

(iv)

x² – 5x – 6=0​

(x+1)(x-6)=0

x= 1,-6