If 5x + x² > 100, then x is not?

If 5x + x² > 100, then x is not?

Answer 1

Notice if x=7 then 5*7+7^2=35+49=84… So x is not 7

Answer 2

If you plug in each answer for the value of x, then answer C (the number 7) is the only one that works. If 5x + x^2 cannot be greater than 100, then 5(7) + (7)^2 = 84, which is less than 100. All other answers give a number greater than 100, which makes the inequality work.

Answer 3

c

Answer 4

C

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