2 years ago

Help me asap please

Mathematics

2 answers:

Sedaia [141]2 years ago

7 0

Answer:

it is true, true, false. your welcome

Degger [83]2 years ago

5 0

Step-by-step explanation:

1st - false

2nd - true

3rd - false

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Step-by-step explanation:

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$x=y^2+4y\\ y^2+4y-x=0\\\Delta=4^2-4\cdot1\cdot(-x)=16+4x\\\\
1.\ \Delta0\\
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-----------------------------------------------------

$x=y^2+4y\\ y^2+4y-x=0\\
y^2+4y+4-4-x=0\\
(y+2)^2=x+4\\
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