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dalvyx [7]
3 years ago
9

21.

Mathematics
1 answer:
erica [24]3 years ago
4 0
I think its true im not sure tho



hope it helps
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f(2)=5

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26.   2x^2 +4x -10 = 0       (-4 + - (root(4^2 - 4*2*-10)))/2*2   =  
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27. f(x) = 0 when any of the components that multiply together equal 0 for this function therefore   x -2 = 0    x +3 = 0    x -5 = 0   so   f(x) = 0 when x = 2, -3 or 5 


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