Solve and check the linear equation.
-$$3 ^ { 2 } - 2 ( 11 - 8 ) ^ { 2 } = 63 x$$
A) $\left\{ - \frac { 1 } { 7 } \right\}$
B) $\{ 7 \}$
C) $\{ 0 \}$
D) $\{ 1 \}$

Question

Quizplus · Accepted Answer

First, simplify the left side of the equation: $3^2 - 2(11 - 8)^2 = 9 - 2(3)^2 = 9 - 2(9) = 9 - 18 = -9$. Then, set the equation equal to $63x$: $-9 = 63x$. Solving for $x$ gives $x = -\frac{9}{63} = -\frac{1}{7}$.

Solve and Check the Linear Equation 32−2(11−8)2=63x3 ^ { 2 } - 2 ( 11 - 8 ) ^ { 2 } = 63 x32−2(11−8)2=63x

Solve and Check the Linear Equation $3 ^ { 2 } - 2 ( 11 - 8 ) ^ { 2 } = 63 x$