Answer:
x = 1/2, 7/2
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
<u>Algebra I</u>
- Completing the Square: (b/2)²
- Factoring
Step-by-step explanation:
<u>Step 1: Define</u>
4x² - 16x + 5 = -2
<u>Step 2: Solve for </u><em><u>x</u></em>
- Isolate <em>x </em>terms: 4x² - 16x = -7
- Factor GCF: 4(x² - 4x) = -7
- Isolate <em>x </em>terms: x² - 4x = -7/4
- Complete the Square: x² - 4x + 4 = -7/4 + 4
- Simplify: (x - 2)² = 9/4
- Square root both sides: x - 2 = ±3/2
- Isolate <em>x</em>: x = 2 ± 3/2
- Evaluate: x = 1/2, 7/2
It not that clear but if the sides are 9 and 40 then the third side will equal to 41
The square root of 85 is
Answer: 9.21954