×

# Nice problems!

1) Find the constant $$a$$ such that functions $$f(x) = ax^2 + 2x - 1$$ and $$g(x) = x^2 + 4x + a$$ have a common root.

2) Find $$m$$ such that equation $$x^3 + mx - 1 = 0$$ and $$x^3 - 3x + m = 0$$ have a common root.

Note by Dev Sharma
11 months ago

Sort by:

3 · 11 months ago

Sorry, answer isn't sufficient. · 10 months, 3 weeks ago

a=3, we can use the quadratic formula in both functions. · 10 months, 3 weeks ago

Show full.. · 10 months, 3 weeks ago

I will definitely try them my friend. · 10 months, 3 weeks ago