How do you find the zeros for #y=5x^2-2#?
2 Answers
You set y equal 0, then solve the resulting equation for the value(s) of x.
Explanation:
Given:
Set
Flip the equation:
Add 2 to both sides:
Divide both sides by 5:
When we perform the square root operation on both sides, we obtain a negative value and a positive value:
Multiply both by 1 in the form of
Check that both values produce
The zeros are
To find the answer, set up the problem so
Explanation:
To find the answer, set up the problem so
Add 2 to both sides to get:
Then, divide both sides by 5:
Then, take the square root of both sides:
The final answer is: