Answer:
![x=-5, 1](https://img.qammunity.org/2021/formulas/mathematics/high-school/au07smac6jj8lb2x1encltk5y2hvm3p3cg.png)
General Formulas and Concepts:
Order of Operations: BPEMDAS
Standard Form: ax² + bx + c = 0
Quadratic Formula:
![x=(-b\pm√(b^2-4ac) )/(2a)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/slv1i3wrs0tu4oudgu3ojp323chawqq6ca.png)
Explanation:
Step 1: Define
-h² - 4h + 5 = 0
a = -1
b = -4
c = 5
Step 2: Solve for x
- Substitute:
![x=(-(-4)\pm√((-4)^2-4(-1)(5)) )/(2(-1))](https://img.qammunity.org/2021/formulas/mathematics/college/k0wg2pfo52c3oqcfvtpmbjtk306q0ya3sn.png)
- Simplify:
![x=(4\pm√((-4)^2-4(-1)(5)) )/(2(-1))](https://img.qammunity.org/2021/formulas/mathematics/college/flhqd5svs9f4i1j241zrhishcxrrru8n8c.png)
- Exponents:
![x=(4\pm√(16-4(-1)(5)) )/(2(-1))](https://img.qammunity.org/2021/formulas/mathematics/college/vjqfgadhtsmoi7p3pta3ho61wjt2flgbyt.png)
- Multiply:
![x=(4\pm√(16+20) )/(-2)](https://img.qammunity.org/2021/formulas/mathematics/college/x3qmstpjavtn64xdefw3gh2qifbcn2dodf.png)
- Add:
![x=(4\pm√(36) )/(-2)](https://img.qammunity.org/2021/formulas/mathematics/college/3fiqj2k0sc7g7gwjnzrd8oe46gf52mdiqb.png)
- Evaluate:
![x=(4\pm6 )/(-2)](https://img.qammunity.org/2021/formulas/mathematics/college/m0brzt1ytg4iv55ub8ylhdg6m7si98r4zy.png)
- Evaluate:
![x=-5, 1](https://img.qammunity.org/2021/formulas/mathematics/high-school/au07smac6jj8lb2x1encltk5y2hvm3p3cg.png)