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KatRina [158]
2 years ago
12

Best answer gets brainliest!

Mathematics
2 answers:
Papessa [141]2 years ago
8 0

option D) y= 2x-1 is the answer.

confirmation →

Put 2 in place of x in 2x-1.

we gets 4-1 = 3

put 4 in place of x in 2x-1.

we gets 8-1 = 7

Thus hence the answer matches the table.

Hence Option D) is correct.

ruslelena [56]2 years ago
6 0

Answer:

<u><em>O D) y = 2x - 1</em></u>

Step-by-step explanation:

<em>If you check the values given in the table and substitute in place of x and y, you will find this relation to be true.</em>

<em></em>

<em>Hope it helps.</em>

<em>;)</em>

<em><3</em>

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<u>Given</u><u>:</u> x = {√(2) + 1}^(-1/3)

<u>Asked</u><u>:</u> x³+(1/x³) = ?

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⇛x³ = [1{√(2) + 1}/{√(2) + 1}{√(2) - 1}]

Multiply the numerator with number outside of the bracket with numbers on the bracket.

⇛x³ = [{√(2) + 1}/{√(2) + 1}{√(2) - 1}]

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Using identity (a+b)(a-b) = a² - b², we get

⇛x³ = [{√(2) - 1}/{√(2)² - (1)²}]

⇛x³ = [{√(2) - 1}/{√(2*2) - (1*1)}]

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⇛1/x³ = [{√(2) + 1}/1]

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