(X + 3)^2- 5 (x + 3) factorise
Answers
Answered by
1
It os the correct solution...
Attachments:
saniya63:
it is wrong
how?
It was done by short method so it is correct
Answered by
2
x²+9+6x-5x-15 = 0
x²+x-6= 0
x²+3x-2x-6 =0
x(x+3)-2(x+3) =0
(x+3)(x-2) = 0
x+3 = 0 & x-2 =0
x = -3 & 2
x²+x-6= 0
x²+3x-2x-6 =0
x(x+3)-2(x+3) =0
(x+3)(x-2) = 0
x+3 = 0 & x-2 =0
x = -3 & 2
it is wrong because it is factorisation not the finding value of x and it is not quadratic equations..
Similar questions