Question

How many solutions are there for 5x² + 7x – 4 = 0?
0
1
2
3

Answer 1

2 solutions. the number of solution depend on the highest POWER of the variable in the equation

Answer 2

use the quadratic formula to see both of your solutions

Answer 3

if there is something like \[54x^3+7x^2-5=4\] the number of solutions it has would be 3. as precal has said. you can either use the quad.formula or factories to find the values of x.