Mathematics, 22.12.2019 00:31, wanderlay29

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 - 21 > 15x
b.
x2 - 3x + 21 > 15 + x
c.
x2 - 3x + 7 ≥ 15x
d.
x2 + 3x ≥ 15 + x

Answers: 1

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The difference of the square of a number and three times the sum of the number and 7 is more than th...