Asked by Tanner
Solving Quadratic Equations by Taking Square RootsIa
I am stuck on these 2, please help.
7x^2 - 4 = 3
8v^2 - 7 = 713
I am stuck on these 2, please help.
7x^2 - 4 = 3
8v^2 - 7 = 713
Answers
Answered by
oobleck
7x^2 - 4 = 3
7x^2 = 7
x^2 = 1
x = ±√1 = ±1
8v^2 - 7 = 713
8v^2 = 720
v^2 = 90
v = ±√90 = ±3√10
7x^2 = 7
x^2 = 1
x = ±√1 = ±1
8v^2 - 7 = 713
8v^2 = 720
v^2 = 90
v = ±√90 = ±3√10
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