Question

−1 is a root of the quadratic equation x2+3x−4=0

Answer 1

This is the answer of your question

Answer 2

Answer:

no

Step-by-step explanation:

when we substitute -1 in place of x we should get 0. Then -1 is said to bet the root of the quadratic equation.

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

1 -3 -4

-2-4 = -6

thus -1 is not a root of the quadratic equation