What does -32 when multiplied but also -25 when aditioned

[neon osprey]

I dont want the answers to everything , im just wondering what does -32 when multiplied but also gives -25 when +

[neon osprey]

(its in french but the picture itself doesent say much anyway.

$(2x-5)^2-16$

[strange wren]

le_roi_de_la_scrap

[neon osprey]

Ive simplified it to $(2x^2-25)-16$

[strange wren]

le_roi_de_la_scrap

[potent geyser]

What does -32 when multiplied but also -25 when aditioned

[covert glade]

You're doing it wrong

You have to use the Identity

(a-b)^2

Now subtract 16 and solve for x