Use the distributive property to solve the equation 3(x-6)+6=5x-6

Three cylinders have a height of 8 cm. cylinder 1 has a radius of 1 cm. cylinder 2 has a radius of 2 cm. cylinder 3 has a radius of 3 cm. find the volume of each cylinder ( ! : ”0 )

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

What is the absolute value of the complex number -4-sqrt2i