Solve the equation. $y ^ { 3 } - 49 y = 0$
A) $y = 0 , y = - 7 , y = 7$
B) $y = 0 , y = - 4$
C) $y = 4 , y = - 7$
D) $y = 0 , y = - 5 , y = 7$
E) $y = 4 , y = - 7 , y = 7$

Name: Solve the equation. $y ^ { 3 } - 49 y = 0$ A) $y = 0 , y = - 7 , y = 7$ B) $y = 0 , y = - 4$ C) $y = 4 , y = - 7$ D) $y = 0 , y = - 5 , y = 7$ E) $y = 4 , y = - 7 , y = 7$
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Question

Quizplus · Accepted Answer

Factor out a y to get $y(y^2 - 49) = 0$, which simplifies to $y(y - 7)(y + 7) = 0$, giving the roots $y = 0$, $y = 7$, and $y = -7$.

Solve the Equation y3−49y=0y ^ { 3 } - 49 y = 0y3−49y=0

Solve the Equation $y ^ { 3 } - 49 y = 0$