lillyymancini
lillyymancini
23-02-2021
Mathematics
contestada
expand and simplify
(y + 2) (y-2)
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stvinlngrwndrs
stvinlngrwndrs
23-02-2021
Y^2-4, using the foil method
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HajirahBibi
HajirahBibi
23-02-2021
(y+2)(y-2)
= y(y-2) + 2(y-2)
= y^2 - 2y + 2y - 4
= y^2 + 0 - 4
= y^2 - 4
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