5x2 + 9x - 18 = 0
plz explain and answer..
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5x2 + 9x - 18 = 0
10 + 9x - 18 =0
-18-10 + 9x = 0
-8 + 9x = 0
9x - 8 = 0
9x = 8 - 0
9x = 8
x = 8/9
= 8/9
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