Expand and simplify these 6 questions first one: 3(1x + 5)
second one: 4(1x + 9)
third one: 3(2x - 3)
fourth one: 2(3x - 1)
fifth one: 5(1x - 2)
sixth one: 4(1x - 6)

1. 3x+15
2. 4x+36
3. 6x-9
4. 6x-2
5.5x-10
6.4x-24

X^2 - 4x +(4/2^2) + y^2 + 8y + (8/2^2) = -4 + (4/2^2) + (8/2^2)(x + 2)^2 + (y + 4)^2 = -4 + 4 + 16your center is (-2, -4) and the radius is the sqrt of -4 + 4 + 16 which is 4