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Abraham
24 December, 07:14
How to find the zeros of f (x) = 5 (2x-5) (5x+4)
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Lesly Holland
24 December, 09:23
0
If xy=0 we assume x and y equal 0
so
the zeros are wehre f (x) = 0
0=5 (2x-5) (5x+4)
set each to zero
5 is not equal 0 so we don't do that
0=2x-5
5=2x
5/2=x
0=5x+4
-4=5x
-4/5=x
zeroes at x=5/2 and - 4/5
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Heather Quinn
24 December, 10:58
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5 (2x-5) (5x+4) = 0
2x-5 = 0
2x = 5
x = 5/2 (Answer)
5x+4 = 0
5x = - 4
x = - 4/5 (Answer)
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