Question

(ii) Is x= -1 a root of the quadratic equation 2 - 3x – 4 = 0?
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Answer 1

Step-by-step explanation:

2 - 3x – 4 = 0

put the value of x

= 2 - 3(-1)– 4 = 0

=2+3-4=0

=5-4=0

=1=0

therefore 1 is not equal to zero hence -1 is not root of the quadratic equation 2 - 3x – 4 = 0