16z^2-25=0
(4z)^2-(5)^2=0
This is in the form of a^2-b^2=(a+b)(a-b)
(4z)^2-(5)^2=(4z+5)((4z-5)
so let's notice, the volume of the rectangular prism is really 3 times as much of that of a pyramid with the same Base and Height.
so if the pyramid has a volume of 150, the prism will have volume of 3*150.
How to solve?: First you will get you alike terms on the same side. You will do this by subtracting 5 on both sides of your sign and will therefore get the equation to where -5 and -3 is on the same side and looks like -5 - 3. Then you will combine your -5 and -3 and get -8. Now you will take your -2x and divide both sides by -2 to where your able to get your variable x alone. You will then get -8 divided by -2 and your answer would be -4.
Answer: -4
HOPE THIS HELPS! ^_^