Answer:
Explanation:
25.
-2x+8=x²-9x+18
or x²-7x+10=0
x²-2x-5x+10=0
x(x-2)-5(x-2)=0
(x-2)(x-5)=0
x=2,5
when x=2
y=-2×2+8=4
so point is (2,4)
when x=5
y=-2×5+8=-2
point is (5,-2)
point of intersection of the system is (2,4) and (5,-2)
similarly you can solve 24th and 26th.