Quadratic Equations - Quadratic Formula(L2)

Practice

Solve for x.

a) -9x² −3x+5 = 0
^-1/₆ ± ^$\sqrt{21}$/₆

b) 2x² +7x−2 = 0
^-7/₄ ± ^$\sqrt{65}$/₄

c) 3x² −x−5 = 0
¹/₆ ± ^$\sqrt{61}$/₆

d) 8x² +7x−6 = 0
^-7/₁₆ ± ^$\sqrt{241}$/₁₆

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

f) 3x² +5x−3 = 0
^-5/₆ ± ^$\sqrt{61}$/₆

g) 2x² −7x−2 = 0
⁷/₄ ± ^$\sqrt{65}$/₄

h) -5x² −6x+9 = 0
^-3/₅ ± ^{3 $\sqrt{6}$}/₅

i) 5x² +6x−9 = 0
^-3/₅ ± ^{3 $\sqrt{6}$}/₅

j) 6x² +2x−3 = 0
^-1/₆ ± ^$\sqrt{19}$/₆