A block of wood is a cube and has the dimensions 5cm by 5cm by 5 cm what is the volume of the block of wood

125 cubic cm

A block's volume is found by multiplying the length, width and height. We have 5*5*5 = 125 as the volume. The units are in cubic centimeters which you can write as "cubic cm" or "cc" for short. Another way to write it is as "cm^3"

Side note: Your math book or your teacher may refer to a block as a rectangular prism.

the circle one

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