Rozwiąż równanie 1)100x²-9(x+1)²=0 2)25(x+2)²-16=0

1)100x²-9(x+1)²=0 100x² -9(x² + 2x + 1) = 0 100x² -9x² - 18x -9 =0 91x² - 18x -9 =0 Δ=b²-4ac Δ=324 -364*(-9) Δ=324 + 3276 Δ= 3600 √Δ = 60 x1 = -b -√Δ / 2a = -91 - 60 / 182 = - 151/182 x2 = -b +√Δ /2a = -91 + 60 /182 = 31 /182 2)25(x+2)²-16=0 25x² + 100x + 84 = 0 Δ=b²-4ac Δ=1000 - 100*84 Δ=1000 - 8400 Δ= -7400 delta ujemna brak rozwiązań

1)100x²-9(x+1)²=0 100x²-9(x²+1)=0 100x²-9x²-9=0 91x²=9 91x=3 x=0,03