We'll re-write the equation having all terms to the left
side:
2x^2 - 5x - 3 = 0
We'll
apply the quadratic formula:
x1 =
[5+sqrt(25+24)]/4
x1 =
(5+7)/4
x1 = 3
x2 =
(5-7)/4
x2 = -1/2
We'll write
the equation according as a product of linear factors:
2x^2
- 5x - 3 = 2(x - x1)(x - x2)
2x^2 - 5x - 3 =
2(x - 3)(x + 1/2)
We can also
re-write the term 5x from the right side as the sum :2x +
3x.
Now, we'll re-write the entire
equation:
2x^2-3 = 2x +
3x
We'll subtract 3x both sides and we'll add 3 both
sides:
2x^2 - 3 + 3 - 3x = 2x + 3x + 3 -
3x
We'll combine and eliminate like
terms:
2x^2 - 3x = 2x +
3
We'll factorize by x to the left
side:
x(2x - 3) = 2x + 3
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