The correct substitution to the equation 4x² + 2x - 1 = 0 is [tex]x=\frac{-2\pm\sqrt{2^2-4(4)(-1)} }{2(4)}[/tex]
What is an equation?
An equation is an expression that shows the relationship between two or more numbers and variables.
Given the quadratic equation:
ax² + bx + c = 0
The solution is at:
[tex]x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}[/tex]
Given the equation:
4x² + 2x - 1 = 0
a = 4, b = 2, c = -1
Hence:
[tex]x=\frac{-2\pm\sqrt{2^2-4(4)(-1)} }{2(4)}[/tex]
The correct substitution to the equation 4x² + 2x - 1 = 0 is [tex]x=\frac{-2\pm\sqrt{2^2-4(4)(-1)} }{2(4)}[/tex]
Find out more on equation at: https://brainly.com/question/2972832
