Answer:
r = 5
Step-by-step explanation:
(r + 8)^2 = r^2 + 12^2
r^2 + 16r + 64 = r^2 + 144
16r = 80
r = 5
Answer:
2³×7
Step-by-step explanation:
Answer:



Step-by-step explanation:
Given



Solving (a): n
To solve for n;
We make use of

Substitute values for XY and XZ



Divide through by -6

Solving (b) XY

Substitute 3 for n



Solving (c): XZ


If you set X to a value of 0, there are 4 complex Zero's
·i√2
·-i√2
·i√3
·-i√3
-I hope this is the answer you are looking for, feel free to post your questions here on brainly in the future.
Y=-a
x=b
a^2x-b^2y/ab=a+b
ax-by=2ab