41. 5(3x + 1)2 + 6(3x + 1) - 8 = 0
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Explanation:
10 (3x + 1) + 6 (3x +1) - 8 = 0
30x + 10 +18x + 6 - 8 = 0
48x = - 12
x = -12/ 48
= -1/4
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