to give or leave by will (see will entry 2 sense 1) —used especially of personal property a ring bequeathed to her by her grandmother. 2 : to hand down : transmit lessons bequeathed to future generations
This is just a mathematics question but factoring is use a lot of times to make numbers smaller and easier to work with that is in the case of GCF 14(x^2 + y^3) you would multiply it out but it is easier to work with