Answer:
The next 3 steps are
Step 4: 
Step 5:
Step 6: 
Step-by-step explanation:
Given:
Quadratic Equation is
x² + 4x - 6 = 0
To Find:
x = ?
Solution:
Step 1: x2 + 4x = 6
Step 2: x2 + 4x + 4 = 6 + 4
Step 3: (x + 2)2 = 10
Step 4: 
Step 5:
Step 6: 
1.15¹⁰=4.0456, the growth rate, so the increase is 3.0456 or 305%.
The speed of the 747 jet is 545MPH and the speed of the 787 jet is 530MPH. that means the 747 jet is faster by 15MPH