Quadratic Equations - Quadratic Formula(L2)

Practice

Solve for x.

a) 8x² +2x−4 = 0
^-1/₈ ± ^$\sqrt{33}$/₈

b) 4x² +3x−3 = 0
^-3/₈ ± ^$\sqrt{57}$/₈

c) -1x² +3x+9 = 0
³/₂ ± ^{3 $\sqrt{5}$}/₂

d) -4x² +7x−2 = 0
⁷/₈ ± ^$\sqrt{17}$/₈

e) -4x² +7x−1 = 0
⁷/₈ ± ^$\sqrt{33}$/₈

f) -4x² +7x+6 = 0
⁷/₈ ± ^$\sqrt{145}$/₈

g) -2x² +5x+9 = 0
⁵/₄ ± ^$\sqrt{97}$/₄

h) 6x² +3x−4 = 0
^-1/₄ ± ^$\sqrt{105}$/₁₂

i) -3x² −3x+2 = 0
^-1/₂ ± ^$\sqrt{33}$/₆

j) -3x² −3x+4 = 0
^-1/₂ ± ^$\sqrt{57}$/₆