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dsp73
2 years ago
6

The expression 2r^2+18x +40 has a greatest common factor of 2.

Mathematics
1 answer:
avanturin [10]2 years ago
7 0

2(x^2+9x+20)

2(x^2+5x+4x+20)

2{x(x+5)+4(x+5)}

2(x+5)(x+4)

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What value of x makes the equation true?
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<em>Greetings from Brasil...</em>

Let's add all the values on one side and make it equal to the sum of all the other values on the other side

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- 8X = - 20    x(- 1)

8X = 20

X = 20/8

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<em>or X = 2.5</em>

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