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12 December, 07:15

When x = 3 and y = 5, by how much does the value of 3x2 - 2y exceed the value of 2x2 - 3y?

a. 4

b. 14

c. 16

d. 20

e. 50

+5
Answers (1)
  1. 12 December, 07:29
    0
    3x^2 - 2y 2x^2 - 3y

    First expression

    3 (3) ^2 - 2 (5) = 3 (9) - 10 27 - 10 = 17

    Second expression

    2 (3) ^2 - 3 (5) = 2 (9) - 15 18 - 15 = 3

    17 - 3 = 14

    B. 14
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