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Mazyrski [523]
3 years ago
10

Which expression is equivalent to 2x^2+2x-4/2x^2-4x+2

Mathematics
2 answers:
irinina [24]3 years ago
6 0

Answer:

\frac{x+2}{x-1}

Step-by-step explanation:

\frac{(2x^2+2x-4)}{(2x^2-4x+2)}

Factor top and bottom separately

2x^2+2x-4

2x^2+4x-2x-4

Make two groups and take out GCf

2x(x+2)-2(x+2)

(x+2)(2x-2)

We factor the denominator

2x^2-4x+2

2x^2-2x-2x+2

Make two groups and take out GCf

2x(x-1)-2(x-1)

(x-1)(2x-2)

\frac{(2x^2+2x-4)}{(2x^2-4x+2)}=\frac{(x+2)(2x-2)}{(x-1)(2x-2)}

2x-2 cancel out

So answer is \frac{x+2}{x-1}


lord [1]3 years ago
4 0
You need to factor the numerator and denominator...

(2x^2+4x-2x-4)/(2x^2-2x-2x+2)

(2x(x+2)-2(x+2))/(2x(x-1)-2(x-1))

((2x-2)(x+2))/((2x-2)(x-1))  so the (2x-2)s cancel out leaving

(x+2)/(x-1)
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