Quadratic Equations - Quadratic Formula(L2)

Practice

Solve for x.

a) 3x² +3x−7 = 0
^-1/₂ ± ^$\sqrt{93}$/₆

b) -2x² +4x+5 = 0
1 ± ^$\sqrt{14}$/₂

c) -3x² +9x−3 = 0
³/₂ ± ^$\sqrt{5}$/₂

d) 7x² +3x−8 = 0
^-3/₁₄ ± ^$\sqrt{233}$/₁₄

e) 4x² −7x−3 = 0
⁷/₈ ± ^$\sqrt{97}$/₈

f) -2x² +3x+1 = 0
³/₄ ± ^$\sqrt{17}$/₄

g) -1x² +7x+5 = 0
⁷/₂ ± ^$\sqrt{69}$/₂

h) 5x² −2x−1 = 0
¹/₅ ± ^$\sqrt{6}$/₅

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

j) 1x² +6x−2 = 0
-3 ±

\sqrt{11}