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24-04-2022
Mathematics

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look at the expression below. 1/2 (a+b) - (a-b)2. what is the value of the expression when a = 18 and b = 14?

A 32
B 12
C 8
D 0

Respuesta :

adaish18 adaish18

24-04-2022

Answer:

8

Step-by-step explanation:

[tex]=\frac{1}{2}(a+b)-(a-b)\times2\\\\= \frac{1}{2}(18+14)-(18-14)\times2\\\\= \frac{1}{2}(32)-(4)\times2\\\\=16-8=8[/tex]

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