Answer:
i) (x -y) -y = 11
ii) (x+y) + x² = 8
iii) The two pairs (( 3 , -4)) and ( ( 3 ,4) satisfy the equation x² + y² = 25
Step-by-step explanation:
Step(i):-
Given that x =3 and y=-4
i) (x -y) -y = (3-(-4))-(-4) = 3+4+4 = 11
ii) (x+y) + x² = ( 3 -4) + (3)² = -1 + 9 = 8
Step(ii):-
Given equation
x² + y² = 25
we can choose (x,y) = ( 3 , -4)
3²+(-4)² = 25
25 = 25
The ordered pair ( 3,-4) satisfies the equation
second ordered pair ( 3 ,4)
x² + y² = 25
9 + 16 = 25
25 = 25
Final answer:-
i) (x -y) -y = 11
ii) (x+y) + x² = 8
iii) The two pairs (( 3 , -4)) and ( ( 3 ,4) satisfy the equation x² + y² = 25
