determine nature of roots of given quadratic equation x²+2x-9=0
Answers
Answered by
1
Answer:
x²+2x-9=0 is the given equation.
here a=1 , b=2 ,c = -9
b²-4ac = 2²-4×1×(-9)
= 4 + 36
= 40 > 0
Hence the roots are imaginary
Step-by-step explanation:
we use b²-4ac formula to determine the nature of the roots.
when b²-4ac = 0 then the roots are real and equal.
if b²-4ac <0 then roots are imaginary.
if b²-4ac >0 then roots are real and unequal.
Similar questions