Quadratic Equations - Quadratic Formula(L2)

Practice

Solve for x.

a) -6x² −6x+8 = 0
^-1/₂ ± ^$\sqrt{57}$/₆

b) 6x² +6x−3 = 0
^-1/₂ ± ^$\sqrt{3}$/₂

c) -8x² −x+2 = 0
^-1/₁₆ ± ^$\sqrt{65}$/₁₆

d) -9x² −4x+1 = 0
^-2/₉ ± ^$\sqrt{13}$/₉

e) 3x² +5x+1 = 0
^-5/₆ ± ^$\sqrt{13}$/₆

f) -1x² −7x+6 = 0
^-7/₂ ± ^$\sqrt{73}$/₂

g) -5x² −3x+6 = 0
^-3/₁₀ ± ^$\sqrt{129}$/₁₀

h) 7x² +8x−2 = 0
^-4/₇ ± ^$\sqrt{30}$/₇

i) -5x² +8x+8 = 0
⁴/₅ ± ^{2 $\sqrt{14}$}/₅

j) -6x² −2x+1 = 0
^-1/₆ ± ^$\sqrt{7}$/₆