<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.
Answer:
hi
Step-by-step explanation:
for example

in the second one you should multiple 5 and 1 then add 4
Yes because division always makes numbers smaller. For example: 12 divided by 4 equals 3.
Step-by-step explanation:
< PQS is exterior angle of the triangle
So,
2X = X + 58
X=58
m < P = 58
m <P QR = 180 - ( 58 + 58 ) =, 64
m < P QS = 116