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Sagot :
Answer: 3 and 7 by x^2 -10x + 21 factoring to (x-7)(x-3)
Or by putting a,b and c values (which are 1, -10 and 21) in the quadratic formula
Step-by-step answer:
Zeros of a function are the values that you plug in for x (the input of the function) so that the output (the y) is equal to 0.
So what x values do you make x^2 - 10x + 21 = 0, that's the same question as how do you solve for x you have to methods that are kinda equivalents
1-Factorization
2-Quadratic formula
1-Factorization. Because a = 1 (ax^2 = 1×x^2)
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