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How to solve the problem of 5.1 × 3x + 5 × 3 = 41?
15.3x=41-15
15.3x=26
x=260/153
(3x 1)^2=6(3x 1) 3
（3X+1)^2=6(3x+1)+3
I'm sorry I didn't notice the plus sign was missing
(3X+1)² = 6(3x+1)+39X² + 6X + 1 = 18X + 99X² - 12X - 8 = 0(9X² - 12X + 4) - 4 - 8 = 0(3X - 2)² = 123X - 2 = ± 2√33X = 2 ± 2√3X = (2 ± 2√3) / 3
3x-1.2=3.6
3x-1.2=3.6
3x=3.6+1.2
3x=4.8
x=1.6
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