Equation f(x) = 0 has roots x1 = 64, x2 = 100, x3 = 25, x4 = 49. How many roots have equation f(x2) = 0?

Correct answer:

n =  8

Step-by-step explanation:

y1=8; y2=8 y3=10; y4=10 y5=5; y6=5 y7=7; y8=7 

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