Question

What are the solutions of the quadratic equation 98-x^2=0 a b c d

Answer 1

The answer is C. 7 square root of 2

Answer 2

`x = -7√(2)` and
`x =7√(2)`

Explanation:

Given the quadratic equation:

`98-x^2 = 0`

We can write this as:

`x^2-98 = 0`

Add 98 to both sides we have;

`x^2 = 98`

take square root both sides we have;

`x = \pm √(98)`

⇒
`x = \pm√(7^2 \cdot 2) = \pm 7√(2)`

Therefore, the solutions of the quadratic equation are
`x = -7√(2)` and
`x =7√(2)`