Mathematics, 17.01.2020 07:31, dannisundrop

(-7w^2 - 2w - 1) - (-5w^2 + 3w - 2)
can someone (thoroughly) explain to me how to do this? you

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(-7w^2 - 2w - 1) - (-5w^2 + 3w - 2)
can someone (thoroughly) explain to me how to do this? y...