Hi someone pls help me!

Step-by-step explanation:

let y = f(x)

82 = x^2 + 1

81 = x^2

x = ±9

y = (3)^2 + 1

y = 10

26 = x^2 + 1

25 = x^2

x = ±5

Topic: Functions + Graphs

If you like to venture further, feel free to check out my insta (learntionary). It would be best if you could give it a follow. I'll be constantly posting math tips and notes! Thanks!

-4

step-by-step explanation:

(-4+8)=-(4-8)=-8+4=-4