Answer:
a
Step-by-step explanation:
11-9=2 and 2 times 7 is 14, 14 plus 12 is 26 ,and 26=26 is a true statement
Answer:
x=8
Step-by-step explanation:
(2x + 1)² = x² + (2x - 1)² = x² + (2x - 1)(2x - 1)
(2x + 1)(2x + 1) = x² + 4x²-2x-2x+1
4x²+2x+2x+1 = 5x²-4x+1
4x²+4x+1 = 5x²-4x+1
0= 5x²-4x²-4x-4x+1-1
0= x²-8x
x²-8x=0
x²=8x
x=8
The bold number (10) is the difference because it is calculated by subtracting two numbers.
Answer:
The Quadratic Formula is derived from the process of completing the square
Step-by-step explanation:
Perimeter is the outside of it and the perimeter is the inside of it, so I'm pretty sure you would have to do both but if u have to do one then I would go with area