A density bottle weighs 10 grams when empty 20 grams when filled with water and 146 grams when filled with mercury. calculate the relative density of water.​

f(x) = x^3 -2x^2 -3x

x( x^2 -2x-3)

x( x^2 +x -3x -3)

x( x(x+1) -3(x+1))

x( x-3)( x+1)

so zeroes are 0, 3,-1

its (2) option

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

25% is the answer

f(x)=4

step-by-step explanation: