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Zigmanuir [339]

2 years ago

7

Simplify

ign="absmiddle" class="latex-formula">

1 answer:

kakasveta [241]2 years ago

7 0

Answer:

Step-by-step explanation:

$\displaystyle \Large \boldsymbol{} x^2+10x+9=0 \\\\ x^2+\underbrace{x+9x}_{10x}+9=0 \\\\x^2+x+\underline9x+\underline9=0 \\\\x(x+1)+9(x+1)=(x+9)(x+1)$

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