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01-09-2018
Mathematics

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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

Respuesta :

Аноним Аноним

01-09-2018

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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