Question

The quadratic 2x2 + 6x + 3 has what type of roots?

A)Two Rational
B)Two Complex
C)One Rational Double
D)Two Irrational


The quadratic 2x2 + 6x + 3 has what type of roots?


A)Two Rational
B)One Rational Double
C)Two Irrational
D)Two Complex

The quadratic 2x2 + 4x + 5 has what type of roots?



A)Two Complex
B)Two Irrational
C)Two Rational
D)One Rational Double

Answer 1

b²-4ac>0 (has 2 root)
b²-4ac<0 (has no root)
b²-4ac=0 (has 1 root)

ax² + bx + c =0

Answer 2

do u understand wat i mean?

Answer 3

No not really the choices sound confusing

Answer 4

ok, for the first question, 2x² + 6x +3 is a function. We can write them in general form of quadrativ equation :

ax² +bx +c = 0
2x²+6x+3=0

so u can see a = 2, b=6 c=3

input the value into this equation b²-4ac and see what is the value
b²-4ac
=6²-4(2)(3)
=36-24>0

so this quadratic function has 2 different root. u can tryt he other 2 question

Answer 5

So which choice would that be?

Answer 6

i think it is a

Answer 7

2x2 +6x +3 =0
D=36-24=12 - so this signe that this equation will have 2 different real solutions

Answer 8

Oh ok thank you