Which value for x makes the open sentence true? 6 • 7 - 5x + x2 ≥ x3 + x2

Question

Mathematics

Robert

3 February, 03:13

Which value for x makes the open sentence true? 6 • 7 - 5x + x2 ≥ x3 + x2

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Keegan Hurst · Answer 1

6●7-5x + x2 ≥ x3 + x2 Lets plug in 3: 6●7-5 (3) + 32 ≥ 33 + 32 Multiply - 5 * 3: 6●7-15 + 32 ≥ 33 + 32 Simplify all exponents: 6●7-15+9≥27+9 Multiply 6 * 7: 42-15+9≥27+9 Subtract 42 - 15: 27+9≥27+9 Add 27 + 9: 36≥27+9 Add 27 + 9: 36≥36 So 3 is correct.