Consider the equation x³+2=2x²+x.
a. verify that x=1, x=−1, and x=2 are each solutions to this equation.
b. bonzo decides to apply the action "ignore the exponents" on each side of the equation. he gets x+2=2x+x. in solving this equation, what does he obtain? what seems to be the problem with his technique?

The edge of a cube was found to be 30 cm with a possible error in measurement of 0.4 cm. use differentials to estimate the maximum possible error, relative error, and percentage error in computing the volume of the cube and the surface area of the cube. (round your answers to four decimal places.) (a) the volume of the cube maximum possible error cm3 relative error percentage error % (b) the surface area of the cube maximum possible error cm2 relative error percentage error %