find the roots of the following quadratic equations if they exist by the method of completing by the square
X2+4x+5=0
Answers
Answered by
3
Answer:
No roots
Step-by-step explanation:
x²+4x+5=0
x²+4x+4+1=0
(x+2)²=-1
There is no rational root as the square can't be negative
Answered by
3
Answer:
Step-by-step explanation:
x^2 + 4x + (4 +1)=0
(x^2 + 4x + 4) + 1 =0
(x + 2)^2 = -1
As LHS will always greater than or equal to 0 whereas RHS = (-1) .
Thus LHS not equal to RHS .
Hence roots doesn't exist
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