Question

Determine the number and type of solutions for x2 + 4x + 3=0.

Answer 1

2 Rational
1 Rational Double
2 Irrational
2 Complex

Answer 2

Discriminat= 16-12 = 4

Answer 3

D=b^2-4ac



D=(4)^2-4(1)(3)



D=16-4(1)(3)



D=16-12



D=4



So the discriminant is D=4



Since the discriminant is greater than zero, this means that there are two real solutions.


Since the discriminant is a perfect square, this means that these two real solutions are also rational.


So the answer is choice A

Answer 4

2 Rational.

Answer 5

(x+1)(x+3)

Answer 6

solutions are -1 and -3