Answer:
b = a + 2 or b = 2 - a
Step-by-step explanation:
Solve for b:
-4 + a^2 + 4 b - b^2 = 0
The left hand side factors into a product with two terms:
(2 + a - b) (-2 + a + b) = 0
Split into two equations:
2 + a - b = 0 or -2 + a + b = 0
Subtract a + 2 from both sides:
-b = -a - 2 or -2 + a + b = 0
Multiply both sides by -1:
b = a + 2 or -2 + a + b = 0
Subtract a - 2 from both sides:
Answer:
b = a + 2 or b = 2 - a
Answer:
x^2 + 2x + 1
Step-by-step explanation:
1. collect the like terms.
2. use the commutative property to reorder the terms.
The answer is 2 3/4 or 2.75
Answer:
The base angles for 1 are L and J
Vertex angle is H
The legs are the lines on each side of the triangle
Step-by-step explanation:
Answer:
one solution
Step-by-step explanation:
4x + 13 = 3x + 15
subtract 3x from both sides:
x + 13 = 15
subtract 13 from both sides:
x = 2
one solution
