Question

What are the solution(s) of the quadratic equation 98 – x2 = 0

Answer 1

Answer: C on edg 2020

Explanation:

Answer 2

To solve first move the 98 to the other side by subtracting it from both sides. Then divide by - 1 on both sides to that the x^2 is no longer a negative. You are left with:


`x^(2) = 98`

Now square root both sides to get


`x = +/- √(98)`

The two factors that make up 98 are 49 and 2. 49 can be square rooted. So we are left with these answers:


`x = - 7 √(2)` and
`x = 7 √(2)`