Mathematics
Beograd
1

What is (x-5) (x+5)?

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(2) Answers
john10

[latex](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[/latex] Hope this helped :)

Polieke

[latex](x-5) (x+5)=x\cdot x+5\cdot x-5\cdot x-5\cdot5=x^2+5x-5x-25=\\ \\=x^2-25[/latex]

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