Question

x1-x2=5
X2-13x+m=0
Va rog mult e urgent
Dau coroana

Answer 1

$x_1-x_2 = 5 \\ \\ x^2-13x+m = 0 \\ \\ (x_1-x_2)^2 = x_1^2+x_2^2-2x_1x_2 = (x_1+x_2)^2-2x_1x_2-2x_1x_2 = \\ \\ = 13^2-2m-2m  \\ \\ \Rightarrow 5^2 = 169-4m  \Rightarrow 4m = 169-25 \Rightarrow 4m = 144 \Rightarrow m = 36$

Answer 2

Răspuns:

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