Question

verify whether-1 is the root of quadratic equation x2+ 3x+2=0​

Answer 1

Answer:

- 0.4

Step-by-step explanation:

x2 = 2x

So,

2x + 3x + 2 = 0

5x + 2 = 0

5x = - 2

x = - 2 ÷ 5

x = - 0.4

HOPE THIS WILL HELP YOU!

Answer 2

Answer:

yes -1 is the root of given equation

Step-by-step explanation:

x^2+3x+2=0

(-1)^2+3(-1)+2=0

1-3+2=0

3-3=0

0=0