SOLUTION: One dimension of a cube is increased by 1 inches to form a rectangular block.supposed that the volume of the new block is 150 cubic inches. find the length of an edge of the origin

Question 980480: One dimension of a cube is increased by 1 inches to form a rectangular block.supposed that the volume of the new block is 150 cubic inches. find the length of an edge of the original cube
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
original block volume.

new block volume.

Look for rational roots with Rational Roots Theorem; three of them at most.
Quick but good guess is that 5 may be a root. Try checking this with synthetic division... I did not; I'm still assuming.

So imagining is a solution,
is the original volume.
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