Rozwiąż równania
-x² + 2√2x - 2 = 0
-x² + 2√3x - 3 = 0
-x² + 2√2x - 2 = 0 /+2
-x² + 2√2x= 2
x(-x+ 2√2)=2 / :(-x+ 2√2)
x=2:(-x+ 2√2)
x= 2√2/-x+4
Analogicznie to drugie, ale nie jestem pewna czy to jest dobrze, sorki próbowałam
- x^2 + 2 p(2) x - 2 = 0
delta = [ 2 p(2)]^2 - 4*(-1)*(-2) = 8 - 8 = 0
x1 = x2 = ( - 2 p(2))/(-2) = p(2)
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- x^2 + 2 p(3) x - 3 = 0
delta = [ 2 p(3)]^2 - 4*(-1)*(-3) = 12 - 12 = 0
x1 = x2 = [ - 2 p(3)]/( - 2) = p(3)
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-x² + 2√2x - 2 = 0 /+2
-x² + 2√2x= 2
x(-x+ 2√2)=2 / :(-x+ 2√2)
x=2:(-x+ 2√2)
x= 2√2/-x+4
Analogicznie to drugie, ale nie jestem pewna czy to jest dobrze, sorki próbowałam
- x^2 + 2 p(2) x - 2 = 0
delta = [ 2 p(2)]^2 - 4*(-1)*(-2) = 8 - 8 = 0
x1 = x2 = ( - 2 p(2))/(-2) = p(2)
==============================
- x^2 + 2 p(3) x - 3 = 0
delta = [ 2 p(3)]^2 - 4*(-1)*(-3) = 12 - 12 = 0
x1 = x2 = [ - 2 p(3)]/( - 2) = p(3)
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