Answer:
xfbxcnfcvfxfhdfxbdfhsdxcbndf
Step-by-step explanation:
I think it's <span>121212121/100000000 but I'm not sure...
</span>
<span>x² + y² + 14x − 4y − 28 = 0
x² +14x +y² - 4y =28
x²+2*7x +7² -7² + y² - 2*2y +2² - 2² = 28
(x+7)² + (y-2)² -7²-2² =28
</span>(x+7)² + (y-2)²=28+49+4
(x+7)² + (y-2)² =81 is the answer.
