Quadratic Equations - Quadratic Formula(L2)

Practice

Solve for x.

a) -2x² −8x+5 = 0
-2 ± ^$\sqrt{26}$/₂

b) 2x² +6x−1 = 0
^-3/₂ ± ^$\sqrt{11}$/₂

c) -2x² +6x+9 = 0
³/₂ ± ^{3 $\sqrt{3}$}/₂

d) 9x² +2x−3 = 0
^-1/₉ ± ^{2 $\sqrt{7}$}/₉

e) 4x² +7x−3 = 0
^-7/₈ ± ^$\sqrt{97}$/₈

f) -7x² −8x+5 = 0
^-4/₇ ± ^$\sqrt{51}$/₇

g) 4x² +5x−5 = 0
^-5/₈ ± ^$\sqrt{105}$/₈

h) 8x² +4x−2 = 0
^-1/₄ ± ^$\sqrt{5}$/₄

i) -3x² +6x+4 = 0
1 ± ^$\sqrt{21}$/₃

j) 6x² −4x−3 = 0
¹/₃ ± ^$\sqrt{22}$/₆