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How to find the zeros of f(x)=5(2x-5)(5x+4)
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How to find the zeros of f(x)=5(2x-5)(5x+4)
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Sep 3, 2018
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How to find the zeros of f(x)=5(2x-5)(5x+4)
Mathematics
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Ifozest
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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)
Alexey Zimarev
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Sep 5, 2018
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Alexey Zimarev
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4
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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
Rendom
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Sep 8, 2018
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Rendom
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