15-11-2018
Mathematics

contestada

which of the following constants can be added tox^2-10x to form a perfect trinomial

Respuesta :

20-11-2018

[tex]Use\ (a-b)^2=a^2-2ab+b^2\\\\x^2-10x=x^2-2(x)(5)\\\\\text{therefore we need add}\ 5^2\\\\x^2-2(x)(5)+5^2=(x-5)^2[/tex]

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