Answer:
The quadratic function(s) in the given expressions are:
2b(b - 7) + b = 0
Expanding the expression, we get:
2b^2 - 14b + b = 0
Simplifying, we get:
2b^2 - 13b = 0
This is a quadratic function, where a = 2, b = -13, and c = 0.
(4a + 2)(2a - 1) + 1 = 0
Expanding the expression, we get:
8a^2 - 2a + 1 = 0
This is a quadratic function, where a = 8, b = -2, and c = 1.
8 - 5x = 4(3x - 1)
Expanding the expression, we get:
8 - 5x = 12x - 4
Simplifying, we get:
17x = 12
This is not a quadratic function, but a linear equation.
2y + 2(3y - 5) = 0
Simplifying the expression, we get:
8y - 10 = 0
Adding 10 to both sides, we get:
8y = 10
Dividing by 8 on both sides, we get:
y = 5/4
This is not a quadratic function, but a linear equation.
Therefore, the quadratic function(s) in the given expressions are 2b^2 - 13b = 0 and 8a^2 - 2a + 1 = 0.
Explanation: