Solve the equation.
-$4 ( x + 6 ) = - 4 x + 4 \left( x ^ { 2 } + 3 \right)$
A)4, -1, -3
B)4, 1, 3
C)1, -3
D)-1, 3

Question

Quizplus · Accepted Answer

Expanding both sides of the equation gives $4x + 24 = -4x + 4x^2 + 12$. Rearranging terms to one side to set the equation to 0, we get $4x^2 - 8x - 12 = 0$. Dividing the entire equation by 4 simplifies it to $x^2 - 2x - 3 = 0$, which factors to $(x - 3)(x + 1) = 0$. Thus, the solutions are $x = 3$ and $x = -1$.

Solve the Equation 4(x+6)=−4x+4(x2+3)4 ( x + 6 ) = - 4 x + 4 \left( x ^ { 2 } + 3 \right)4(x+6)=−4x+4(x2+3)

Solve the Equation $4 ( x + 6 ) = - 4 x + 4 \left( x ^ { 2 } + 3 \right)$