Mandysweetheartid
Mandysweetheartid
Mathematics
Answered
What is (x-5) (x+5)?
Sagot :
TacoGodid
TacoGodid
[tex](x-5)(x+5)\\FOIL\ Method\\\\First \\x*x=x^2\\\\Outside\\x*5=5x\\\\Inside\\-5*x=-5x\\\\Last\\-5*5=-25 \\\\ Combine\ like\ terms.\\\\-5x+5x=0x\\\\Combine\ together\\\\x^2-25[/tex]
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Kate200468id
Kate200468id
[tex](x-5) (x+5)=x\cdot x+5\cdot x-5\cdot x-5\cdot5=x^2+5x-5x-25=\\ \\=x^2-25[/tex]
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