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SWAG
Does (2x-5) · (x+1) equal 2x^2-5 if not why @Mertsj @campbell_st
It does not because you forgot the Outer and Inner of FOIL
nope... you will have a trinomial... 3 terms you are missing the middle term \[-5 \times x.... and .... 2x \times 1\] these are like terms so can be added or subtracted to find the 3rd term
you have \[2x \times x .... and -5 \times 1 \]