Question

5x^2 + 3 = 83
smaller
larger

Answer 1

• smaller: -4
• larger: 4

Explanation:

5x^2 +3 = 83 . . . . given

5x^2 = 80 . . . . . . .subtract 3

x^2 = 16 . . . . . . . . .divide by 5

x = ±√16 = ±4 . . . take the square root

The smaller value of x is -4; the larger value, +4.