Question

ayuda urgente! despejad esto! doy corona!

(x-5)² = x²+2•x•5+5²

(x+3)² = x²+2•x•5+5²

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Answer 1

Respuesta:

Explicación paso a paso:

$(x - 5)^{2}$ = $x^{2}$ + 2.x.5+$5^{2}$

$x^{2} - 2.x.5+5^{2} = x^{2} +10x+25$

$x^{2} -10x+25=x^{2} +10x+25$

$x^{2} -x^{2} -10x-10x=25-25$

-20x=0

x=0

$(x+3)^{2} = x^{2} +2.x.5 + 5^{2}$

$x^{2} +2.x.3+3^{2} = x^{2} +10x+25$

$x^{2} +6x+9=x^{2} +10x+25$

$x^{2} -x^{2} +6x-10x=25-9$

$-4x=16$

x=16/-4

x= - 4