Solve the equation by the square root property.
-$$5 x ^ { 2 } = 80$$
A) $\{ - 4,4 \}$
B) $\{ - 4 \sqrt { 5 } , 4 \sqrt { 5 } \}$
C) $\{ - 5,5 \}$
D) $\{ 0 \}$

Name: Solve the equation by the square root property. -\[5 x ^ { 2 } = 80\] A) $\{ - 4,4 \}$ B) $\{ - 4 \sqrt { 5 } , 4 \sqrt { 5 } \}$ C) $\{ - 5,5 \}$ D) $\{ 0 \}$
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Question

Quizplus · Accepted Answer

First, divide both sides by 5 to get $x^2 = 16$. Then, take the square root of both sides to find $x = \pm 4$.

Solve the Equation by the Square Root Property 5x2=805 x ^ { 2 } = 805x2=80

Solve the Equation by the Square Root Property $5 x ^ { 2 } = 80$