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erik [133]
3 years ago
5

2x squared - 3x = 2x - 2

Mathematics
2 answers:
elena-s [515]3 years ago
4 0
Answer: x=1/2 or x=2
FinnZ [79.3K]3 years ago
4 0
2x^2 - 3x = 2x - 2
2x^2 -5x + 2


Factoring:
1. find the two numbers that multiply to equal ac (2 • 2) and add to equal b (-5)
The numbers = -4, -1

2. Extend the b term into these two numbers.
2x^2 -4x - x + 2

3. Group the first two terms and the last two terms to each other.
(2x^2 - 4x)(-x + 2)

4. Take out the GCF's in the parentheses sections. Note: the terms inside both of the parentheses should be equal, or you have done something wrong.
2x(x - 2) - 1(x - 2)

5. Group the GCF's together alongside the equivalent parentheses sections.
(2x - 1)(x - 2)


You're done here, but IF you want to find the solutions, you have to set each of the new parentheses sections to zero and solve for x.
2x - 1 = 0 >> 2x = 1 >> x = 1/2
x - 2= 0 >> x = 2


In conclusion, your solutions are x = 1/2 and x = 2, and your factored equation is (2x - 1)(x - 2)


Hope this helps!!
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