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Mckee
4 January, 01:12
What is the solution of X2-9x+18=0
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Cassandra Stanley
4 January, 01:48
0
X² - 9x + 18 = 0
x = - (-9) + / - √ ((-9) ² - 4 (1) (18))
2 (1)
x = 9 + / - √ (81 - 72)
2
x = 9 + / - √ (9)
2
x = 9 + / - 3
2
x = 4.5 + 1.5
x = 4.5 + 1.5 x = 4.5 - 1.5
x = 6 x = 3
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