3 years ago

When 18 is reduced by two-thirds of a number the result is 12 find the number

Mathematics

1 answer:

Reil [10]3 years ago

4 0

Answer:

2/3s of 18 is 12, 18-12=6

Step-by-step explanation:

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Expanding the left side of the equation, it is found that since both sides are equal, yes, it is an identity.

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In this problem:

$(a - b)^4 = a^4 - 4a^3b + 6a^2b^2 - 4ab^3 + b^4$

Expanding the left side:

$(a - b)^2(a - b)^2 = a^4 - 4a^3b + 6a^2b^2 + 4ab^3 + b^4$

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A similar problem is given at brainly.com/question/24866308

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