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Viktor [21]
3 years ago
10

Find the zeros of f(x) = 4x 2 + 5x - 21.

Mathematics
1 answer:
Goryan [66]3 years ago
6 0
To find the roots, you must set the function equal to zero and then solve for x. 
For f(x)=4x^2 + 5x -21  
The zeros of the function are: x=-3, x=7/4
Hope this helps!
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Answer:

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You have a right triangle (90°), so you do as follow:

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7 0
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snow_lady [41]

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