cody1097
24.04.2020 •
Mathematics
Find the zeros of the function y = x^2-1.
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Ответ:
Step-by-step explanation:
x^2-1=0
Add 1 to both sides of the equation.
x^2= 1
Take the square root of both sides of the equation to eliminate the exponent on the left side.
x = ± √ 1
Any root of 1 is x = ± 1
First, use the positive value of the ±
to find the first solution.
x= 1
Next, use the negative value of the ±
to find the second solution.
x = − 1
The complete solution is the result of both the positive and negative portions of the solution.
x = 1 , − 1
Ответ:
This is because you have to solve the problem as follows:
y=x^2-1
Replace y with 0, because we’re looking for the value of x when y is 0
0= x^2 -1
Add 1 to both sides to help get x alone
x^2= 1
Square root both sides to get x alone
x=+_1
Or
x= 1 and x= -1
Ответ:
xz (4x2 - 2x3)
5x3 (2)
15 (2)
30