Evaluate the rational expression for the given value of the variable
-$\frac { x ^ { 2 } - 4 x } { x - 3 }$ for $x = 8$
A) $\frac { 32 } { 5 }$
B) 0
C) Undefined
D) $- \frac { 32 } { 5 }$

Question

Quizplus · Accepted Answer

Substituting $x = 8$ into the expression $\frac { x ^ { 2 } - 4 x } { x - 3 }$ gives $\frac { 8^2 - 4*8 } { 8 - 3 } = \frac { 64 - 32 } { 5 } = \frac { 32 } { 5 }$.

Evaluate the Rational Expression for the Given Value of the Variable