Quadratic Equations - Quadratic Formula(L2)

Practice

Solve for x.

a) -1x² +6x−6 = 0
3 ±

\sqrt{3}

b) 5x² +5x+1 = 0
^-1/₂ ± ^$\sqrt{5}$/₁₀

c) 1x² +4x−6 = 0
-2 ±

\sqrt{10}

d) -8x² −9x+3 = 0
^-9/₁₆ ± ^$\sqrt{177}$/₁₆

e) -4x² −3x+4 = 0
^-3/₈ ± ^$\sqrt{73}$/₈

f) 3x² +8x−8 = 0
^-4/₃ ± ^{2 $\sqrt{10}$}/₃

g) -1x² −3x+5 = 0
^-3/₂ ± ^$\sqrt{29}$/₂

h) 5x² −x−2 = 0
¹/₁₀ ± ^$\sqrt{41}$/₁₀

i) -8x² −3x+6 = 0
^-3/₁₆ ± ^$\sqrt{201}$/₁₆

j) 7x² +6x−5 = 0
^-3/₇ ± ^{2 $\sqrt{11}$}/₇