y = x 2 − 1
0 = x 2 − 1
0 = ( x + 1 ) ( x − 1 )
x + 1 = 0
x = − 1
x − 1 = 0
x = 1
zeros : − 1 , 1
y = x² - 1
I can find the zeros from a graph, but that won't help you any, because I'm not about to draw the graph and then post it here.
y = (x + 1) (x - 1)
y = 0 when x = +1 or x = -1 .
The zeros of the function y = x 2 − 1 are found by solving the equation x 2 − 1 = 0 , leading to the solutions x = − 1 and x = 1 . These points are where the graph crosses the x-axis. Therefore, the zeros are at the points ( − 1 , 0 ) and ( 1 , 0 ) .
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