If we substitute z = 2 - x - y in the last 2 equations it simplifies to 2 equations in x and y:=
x^2 + y^2 + xy - 2x - 2y = 5 and
-x^2 - y^2 - xy + 2x + 2y = -5
if we add these we get 0 = 0 so there are infinite solutions
Answer:
Step-by-step explanation:
OPTION 3
Answer:
The answer is
<h2>15</h2>
Step-by-step explanation:
To find w(- 7) substitute the value of t that's - 7 into w(t) that's for every t in w(t) replace it with - 7
That's
We have the final answer as
<h3>15</h3>
Hope this helps you
Answer:
yur
Step-by-step explanation: