Images 13 4Х 2

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13 4х 2. X 4 13x 2 +36. Х4-13х2+36 0. Х^2-13х+36=0. Х2-36=0.
X 4 13x 2 +36. Х4-13х2+36 0. Х^2-13х+36=0. Х2-36=0.

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