Question

Does (2x-5) · (x+1) equal 2x^2-5 if not why @Mertsj @campbell_st

Answer 1

It does not because you forgot the Outer and Inner of FOIL

Answer 2

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

Answer 3

you have

\[2x \times x .... and -5 \times 1 \]