prosze o szybkie zrobienie tych 2 zadan ! prosze z dokladnym rozpisywaniem !

zad 1.  a) x²-49=0 / +49 x²=49 / √ x=7 b) x²-144=0 / +144 x²=144 /√ x=12 c) 9x²-1=0 / +1 9x²=1 / :9 x²= 1/9  / √ x=1/3 d) 36x²-1=0 / +1 36x²=1 / :36 x²=1/36  /√ x=1/6 e) 4x²-81=0 / +81 4x²=81 / √ 2x=9 /:2 x=4,5 f) 25x²-36=0 / +36 25x²=36 /√ 5x=6 /:5 x=5/6 zad.2 a) x²-50=0 /+50 x²=50 /√ x=√50 b) 2x²-7=0 /+7 2x²=7 / :2 x²=3,5 /√ x=√3,5 c) 3x²-24=0 /+24 3x²=24 / :3 x²=8 / √ x=√8 d) 28x²-14=0 / +14 28x² = 14 / :28 x²=0,5 /√ x=√0,5 e) 27x²-18=0 / +18 27x²=18 /:27 x²=18/27 - ułamek się skróci (przez 9) x²=2/3  /√ x=√2/3 f) 9x²+4=0 /-4 9x²= -4 / √ 3x=2 /:3 x=2/3

Zad. 1 [latex]a) x^{2} - 49 = 0 \ x^{2} =49 \ x=7 , x=-7 [/latex] [latex]b) x^{2} -144=0 \ x^{2} =144 \ x=12, x=-12[/latex] [latex]c)9 x^{2} -1=0 \ 9 x^{2} =1 \ x^{2} = frac{1}{9} \ x= frac{1}{3} , x=- frac{1}{3} [/latex] [latex]d)36 x^{2} -1=0 \ 36 x^{2} =1 \ x^{2} = frac{1}{36} \ x= frac{1}{6} ,x=- frac{1}{6} [/latex] [latex]e)4 x^{2} -81=0 \ 4 x^{2} =81 \ x^{2} = frac{81}{4} \ x= frac{9}{2} ,x= -frac{9}{2} [/latex] [latex]f) 25 x^{2} -36=0 \ 25 x^{2} =36 \ x^{2} = frac{36}{25} \ x= frac{6}{5} ,x= -frac{6}{5} [/latex] Zad. 2 [latex]a) x^{2} -50=0 \ x^{2} =50 \ x= sqrt{50} \ x=5 sqrt{2} ,x=-5 sqrt{2} [/latex] [latex]b) 2 x^{2} -7=0 \ 2 x^{2} =7 \ x^{2} = frac{7}{2} \ x= sqrt{} frac{7}{2} ,x=- sqrt{} frac{7}{2} [/latex] [latex]c) 3 x^{2} -24=0 \ 3 x^{2} =24 \ x^{2} = frac{24}{3} \ x= 2 sqrt{2} , x=-2 sqrt{2} [/latex] [latex]d)28 x^{2} -14=0 \ 28 x^{2} =14 \ x^{2} = frac{1}{2} \ x= sqrt{} frac{1}{2} ,x=- sqrt{} frac{1}{2} [/latex] [latex]e)27 x^{2} -18=0 \ 27 x^{2} =18 \ x^{2} = frac{2}{3} \ x= sqrt{} frac{2}{3} ,x=- sqrt{} frac{2}{3} [/latex] [latex]f)9 x^{2} +4=0 \ 9 x^{2} =-4 \ x^{2} =- frac{4}{9} \ x^{2} eq - frac{4}{9} [/latex]