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how
exactly
help:) solving by competing the square: 3x^2-10x+8=0
\[-b \pm \sqrt{b^2+2ac}\div2a\]
Divide both sides by 3: x^2-(10 x)/3+8/3 = 0 Subtract 8/3 from both sides: x^2-(10 x)/3 = -8/3 Add 25/9 to both sides: x^2-(10 x)/3+25/9 = 1/9 Factor the left hand side: (x-5/3)^2 = 1/9 Take the square root of both sides: sqrt(x-5/3) = (+or -)1/3 Eliminate the absolute value: x-5/3 = -1/3 or x-5/3 = 1/3 Add 5/3 to both sides: x = 4/3 or x-5/3 = 1/3 Add 5/3 to both sides: x = 4/3 or x = 2
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sry b^2 - 4ac
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