subject
Mathematics, 08.08.2021 17:20 marsay24

If logx27 + logy4 =5
and logx27 - logy4 =1
find x and y​

Answers

ansver
Answer from: april861

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ansver
Answer from: Quest

  n=   0.0000 - 0.3750 i  

  n=   0.0000 + 0.3750 i

step-by-step explanation:

one of these should be correct

ansver
Answer from: Quest

x=-2 or x=-5

step-by-step explanation:

we need to solve for 'x' the following equation:   \sqrt{(x+6)} - 4 = x

we have that:

\sqrt{(x+6)} - 4 = x ⇒ (x+6) = (x+4)^{2}

⇒ x+6 = x^{2} + 8x + 16 ⇒ x^{2} + 7x + 10 = 0

factorizing, we get that:

x^{2} + 7x + 10 = 0   ⇒ (x+2)(x+5)=0

then, the solutions are: x=-2 or x=-5

nothing extraneous has been found!

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If logx27 + logy4 =5
and logx27 - logy4 =1
find x and y​...

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