Question

What is the value of the discriminant for the quadratic equation 0 = x + 2 + x2?

Discriminant = b2 – 4ac

–9
–7
7
9

Answer 1

Answer:

x= -1 ,

Step-by-step explanation:

x^2 + x+2

x^2+(x+x)+2

x(x+1)+1(x+1)

(x+1)(x+1)

x=-1

Answer 2

Answer:

$given \: equation \\ {x}^{2} + x + 2 = 0 \\ a {x}^{2} + bx + c = 0 \\ where \\ a = 1 \\ b = 1 \\ c = 2 \\ its \: discriminant \: by \: \: \: {b}^{2} - 4ac \\ {1}^{2} - 4 \times 1 \times 2 = > 1 - 8 \\ = > -7 \\ \\ \\ its \: right \: answer \: is \: - 7$

may be it's helpful to you ✴️