Tolong bantu saya Kaka

Tolong bantu saya Kaka

Penjelasan dengan langkah-langkah:

1. x²+8x+6=0

x²+8x=-6

————- +16

x²+8x+16= 10

$(x + 4) {}^{2} = sqrt{10} {}^{2} \ x + 4 = + - sqrt{10} \ x + 4 = sqrt{10} \ x = sqrt{10} - 4 \ atau \ x + 4 = - sqrt{10} \ x = - sqrt{10} - 4$

x²-14x+9=0

x²-14x= -9

x²-14x+49= -9+49

$(x - 7) {}^{2} = sqrt{40} {}^{2} \ x - 7 = + - sqrt{40} \ x - 7 = sqrt{40} \ x = 7 + sqrt{40} \ atau \ x - 7 = - sqrt{40} \ x = - sqrt{40} + 7$