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viva [34]
2 years ago
6

Please help (images below)

Mathematics
1 answer:
Kay [80]2 years ago
5 0

Answer:

2) D

because:

\frac{9}{1}  \times 4 \\  9 \times 4 \\ 36  \: is \: not \: equal \: to \: 4

4) B

because:

\frac{5}{5}  \times 8 \\ 1 \times 8 \\ 8 \: is \: equal \: to \: 8

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R=3(a+b)(a-b)(b+c)(b-c)(c+a)(c-a)\\\\=3(a^2-b^2)(b^2-c^2)(c^2-a^2)\\\\=3(a^2b^2-a^2c^2-b^4+b^2c^2)(c^2-a^2)\\\\=3(a^2b^2c^2-a^4b^2-a^2c^4+a^4c^2-b^4c^2+a^2b^4+b^2c^4-a^2b^2c^2)\\\\=3(-a^4b^2+a^2b^4-b^4c^2+b^2c^4-a^2c^4+a^4c^2)\\\\L=R
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Step-by-step explanation:

?

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Answer:

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Due to the law of the order of operations (Parenthesis, Exponents, Multiplication/Division, Addition, Subtraction), we are going to first half to find out the value of whats in the parenthesis so

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Then we multipy the numbers inside and outside of the parenthesis, giving you 54+36-27-18

And when you add and subtract them all up you get, 45

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3 years ago
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