The difference of the square of a number and three times the sum of the number and 7 is more than the product of that number and

Question

3 years ago

9

The difference of the square of a number and three times the sum of the number and 7 is more than the product of that number and

15.
Select the inequality that can be used to determine the unknown number.

A.) x2 + 3x ≥ 15 + x

B.) x2 - 3x + 7 ≥ 15x

C.) x2 - 3x - 21 > 15x

D.) x2 - 3x + 21 > 15 + x

Mathematics

1 answer:

Pachacha [2.7K] · Answer 1 · 2021-12-24T19:40:56+03:00

Pachacha [2.7K]3 years ago

6 0

Answer:

x2 - 3(x + 7) > 15x

x2 - 3x - 21 > 15x