mackenziewhitney2005 mackenziewhitney2005

25-04-2020
Mathematics

contestada

Which of the following is a perfect square trinomial?
x2 - 5x + 6
x² – 3x+4
x2 + 20x + 100
x2 + 14x - 49

Respuesta :

mirai123 mirai123

25-04-2020

Answer:

[tex]x^2-5x+6\\(x-3)(x-2)[/tex]

[tex]x^2-3x+4\\(x-4)(x+1)[/tex]

[tex]x^2+20x+100\\(x+10)(x+10)\\(x+10)^2[/tex]

That's the answer

[tex]x^2+14x-49\\x(x+14)-49[/tex]

Only [tex]x^2+20x+100[/tex] is a perfect square trinomial

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