Question

verify whether the following are zeros of the polynomial indicated against them​

Answer 1

Answer:

-1/√5

Step-by-step explanation:

5x^2-1

=5(-1\√5)^2-1

=5×1/5-1

=1-1

=0

Answer 2

5x²-1

$5 { ({ \frac{ - 1}{ \sqrt{5} } } )}^{2} - 1 \\ = 5 \times \frac{1}{5} - 1 \\ = 1 - 1 \\ = 0$

2/√5 is not a zero.