Solve for x in the equation x:x^2 - 12 x + 36 = 90.* O x = 12 plus-or-minus 3 sqrt of 10
O x = 6 plus-or-minus 3 sqrt of 10
O x = 12 plus-or-minus 3 sqrt of 22
O x = 6 plus-or-minus 2 sqrt of 7
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step-by-step explanation:

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step-by-step explanation:

the correct answer is 1: 2

step-by-step explanation:

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or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!