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tgould1969

tgould1969

19.12.2019 •

Mathematics

Having trouble finding what y equals

Having trouble finding what y equals

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Ответ:

aylin5044

13.01.2022

The conjecture is the formula, and we start with 3. However, as x increases, y decreases by 1, so we can do 3-x (as -1*x puts -x in)

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Ответ:

Kira4585

03.11.2022

$\{\sqrt b, -\sqrt b\}$

Step-by-step explanation:

Given

a^2 - b = 0

Required

Determine the solution

Since b is a perfect square, the equation can be expressed as:

$a^2 - (\sqrt b)^2 = 0$

Apply difference of two squares:

$(a - \sqrt b)(a + \sqrt b) = 0$

Split:

$(a - \sqrt b)= 0 \ or\ (a + \sqrt b) = 0$

Remove brackets:

$a - \sqrt b= 0 \ or\ a + \sqrt b = 0$

Make a the subject in both equations

$a =\sqrt b \ or\ a =-\sqrt b$

The solution can be represented as:

$\{\sqrt b, -\sqrt b\}$

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