Answer:
oh god
Step-by-step explanation:
(2 + 6/2, 7 + 3/2)
=(4 , 5)
Pythagoras theorem
a^2=b^2+c^2
(x-2)^2=9^2+(x+1)^2
x^2-4x+4=81+x^2+2x+1
Collect like terms
-4x-2x=82-4
-6x=78
x=-13
