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3 years ago

X^2 + 6x + 5 show equation

Mathematics

1 answer:

alekssr [168]3 years ago

5 0

Answer:

$\boxed{\sf \ \ \ x=-5 \ \ \ or \ \ \ x=-1 \ \ }$

Step-by-step explanation:

$x^2+6x+5 = x^2+x+5x+5 = x(x+1)+5(x+1)=(x+5)(x+1)$

$x^2+6x+5 = 0 (x+5)(x+1)=0\\\\ x = -5 \ or \ x=-1$

hope this helps

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Step-by-step explanation:

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<h3>to understand this</h3><h3>you need to know about:</h3>

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PEMDAS

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$\sf substitute \: the \: value \: of \: y : \\ \sf - x + 2 = 3x - 4$
$\sf add \: x \: to \: both \: sides : \\ \sf - x + x + 2 = 3x + x - 4 \\ \sf 4x - 4 = 2$
$\sf add \: 4 \: to \: both \: sides : \\ \sf xx - 4 + 4 = 2 + 4 \\ 4x = 6$
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