Answer:
1
x²-6x-27=0
a=1
b= -6
c= -27
d= (-6)² -4(1) (-27)
d=36+108
d=144
d> 0 and also a perfect square therefore the nature of root is rational
2.
x² = -6=0
a= 1
b= 0
c=-6
d= (0)² -4(1)(-6)
d=24
d> 0 but not a perfect square therefore the nature of root is irrational
3.
x²= +10x +25 =0
b=10
c=25
d=(10)² -4(1)(25)
d=100-100
d=0
d>0 and also a perfect square therefore the nature of root is rational
4.
2x²= -5x+3 =0
a=2
b=-5
c=3
d=(-5)²-4(2)(3)
d=25-24
d=1
#CarryOnLearning
Step-by-step explanation:
A= 1 B=6 C=27
descriminant x², x
nature of roots : Perfect square
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Answers & Comments
Answer:
1
x²-6x-27=0
a=1
b= -6
c= -27
d= (-6)² -4(1) (-27)
d=36+108
d=144
d> 0 and also a perfect square therefore the nature of root is rational
2.
x² = -6=0
a= 1
b= 0
c=-6
d= (0)² -4(1)(-6)
d=24
d> 0 but not a perfect square therefore the nature of root is irrational
3.
x²= +10x +25 =0
a=1
b=10
c=25
d=(10)² -4(1)(25)
d=100-100
d=0
d>0 and also a perfect square therefore the nature of root is rational
4.
2x²= -5x+3 =0
a=2
b=-5
c=3
d=(-5)²-4(2)(3)
d=25-24
d=1
d>0 and also a perfect square therefore the nature of root is rational
#CarryOnLearning
Step-by-step explanation:
x²-6x-27=0
A= 1 B=6 C=27
descriminant x², x
nature of roots : Perfect square