How to use the discriminant to find out how many real number roots an equation has for #2x^2 + 5x - 3 = 0 #?
Eva Adamson#2x^2 + 5x - 3 = 0
D = d^2 = b^2 - 4ac = 25 + 24 = 49 -> d = +- 7
There are 2 real roots:
By signing up, you agree to our Terms of Service and Privacy Policy
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
- How do you sketch the graph of #y=(x-2)^2-7# and describe the transformation?
- How do you find the vertex of #f(x)=(x-1)^2-1#?
- How do find the vertex and axis of symmetry, and intercepts for a quadratic equation #f(x)=2x^2-4x+1#?
- How do you graph #Y=1/4x^2#?
- How do you find the axis of symmetry and vertex point of the function: # y = -x^2 + 3x + 5#?
- 98% accuracy study help
- Covers math, physics, chemistry, biology, and more
- Step-by-step, in-depth guides
- Readily available 24/7