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OK :)

so substituting 2 first for x. You then get 5(2)^2+8. You ALWAYS DO THE SQUARE FIRST!!!! So 2 squared is 4. The you multiply 5 x 4 which = 20 then add 8 so you would get 20 +8 = 28

substituting 1 for x. You then get 5(1)^2+8. You ALWAYS DO THE SQUARE FIRST!!!! So 1 squared is 1. Then multiply 5 x 1 which = 5 then add 8 which gives you 5 +8 = 13

Hope that helps :)

x = 1

5 (1)^2 + 8

5 (1) + 8

5 + 8

= 13

x = 2

5 (2)^2 + 8

5(4) + 8

20 + 8

= 28

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