Factorise x square plus x plus one
Answers
Answered by
6
HEY DEAR.....
HERE'S YOUR ANSWER⬇
# x² + x + 1 = 0.
a + b = 1 ; a b = 1.
a = 1 ; b = 1.
# x² + x + x + 1 = 0.
# x (x+1) + 1 (x+1) = 0.
# (x+1) (x+1).
#Therefore : x = -1, -1.
any doubts, please ask me in the comments.
I HOPE YOU FIND IT HELPFUL.
@ LB :)
HERE'S YOUR ANSWER⬇
# x² + x + 1 = 0.
a + b = 1 ; a b = 1.
a = 1 ; b = 1.
# x² + x + x + 1 = 0.
# x (x+1) + 1 (x+1) = 0.
# (x+1) (x+1).
#Therefore : x = -1, -1.
any doubts, please ask me in the comments.
I HOPE YOU FIND IT HELPFUL.
@ LB :)
Answered by
1
The D of the expression is (b²-4ac) = -3 ,
Therefore the roots are (-b ± √D)/2a.
The roots are (-1 + i√3)/2 = a and (-1-i√3)/2 = b, where i denotes √-1 ( imaginary number).
Hence after factorization,
(x-b)(x-a).
put the values of a and b and you will get the answer
Therefore the roots are (-b ± √D)/2a.
The roots are (-1 + i√3)/2 = a and (-1-i√3)/2 = b, where i denotes √-1 ( imaginary number).
Hence after factorization,
(x-b)(x-a).
put the values of a and b and you will get the answer
KDstudy:
hope it help .
helps
if you are in class 10 or below then the answer should be = no real roots
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