Solve the equation by the square root property.
-$$4 x ^ { 2 } + 5 = 789$$
A) $\{ - 15,15 \}$
B) $\{ - 14,14 \}$
C) $\{ 394.5 \}$
D) $\{ 14 \}$

Name: Solve the equation by the square root property. -\[4 x ^ { 2 } + 5 = 789\] A) $\{ - 15,15 \}$ B) $\{ - 14,14 \}$ C) $\{ 394.5 \}$ D) $\{ 14 \}$
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Quizplus · Accepted Answer

First, subtract 5 from both sides to get $4x^2 = 784$. Then, divide both sides by 4 to get $x^2 = 196$. Taking the square root of both sides gives $x = \pm 14$, so the solution set is $\{-14, 14\}$.

Solve the Equation by the Square Root Property 4x2+5=7894 x ^ { 2 } + 5 = 7894x2+5=789

Solve the Equation by the Square Root Property $4 x ^ { 2 } + 5 = 789$