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5(x – 1) + 2(x + 3) + 6 = 0 *2 points |
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Answer» Step-by-step explanation: Explanation: x 2 3 − 5 x 1 3 + 6 =
y = x 1 3 , and then the equation BECOMES a QUADRATIC in y
y 2 − 5 y + 6 = 0
( y − 2 ) ( y − 3 ) = 0
y − 2 = 0 ⇒ x 1 3 = 2 ⇒ x = 8
y − 3 = 0 ⇒ x 1 3 = 3 ⇒ x = 27 |
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