Question

Is x= -1 a root of the quadratic equation x^2- 3x -4 = 0 ?​

Answer 1

Answer:

put the value of x in the equation

x= -1

-1^2 - 3×-1 - 4 =0

1 - (-3 ) -4 =0

1+3 -4 =0

4-4 =0

Answer 2

Answer:

Yes ✌

Step-by-step explanation:

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

1+3-4

4-4

0=0

therefore x=-1 is zero of given equation

MARK AS BRAINLIST