Question

. One of the solution of the equations …..is 3. (a)x2-x-6=0 (b)x2+x-6=0 (c)x2-x+6=0 (d)x2+x+6=0

Answer 1

Answer:

c

Step-by-step explanation:

now consider x=3 substitute x value in

• option (b) x2+x-6=0
• then after substituting x value then we get
• 3*2+3-6=3

Answer 2

Answer:

(A)

Step-by-step explanation:

(A) x^2-x-6

=  x^2+2x-3x-6

=  x(x+2)-3(x+2)

 =  (x+2) or (x-3)

  =   x = -2 or x = 3

Therefore, one of solution of equation x^2- x- 6 is 3