Consider the following quadratic equation.

Question

y=x²+2√2x -5 

 

Finding the x-intercepts

 

Smaller X-Value and Larger X-Value

Answer 1

You have to solve equation

x²+2√2x -5=0.

If you solve it ( I think you can!), you get

x₁=-√2 -√7,

x₂=-√2 + √7

These are x intercepts.