Take how much was added, divide by how much you originally had. 100-80=20. 20/80= 25%
Answer: Below
Step-by-step explanation:
Just mutiply x on both sides which gives you 2x^2 + 12x then you mutiply 2x^2 then subtract that number on both sides and it gives you x = something then you distribute it on 8(something) - 18 you subtract
The constant term in the equation is -20 because you will always be subtracting 20 no matter how big x is