Subtract the Rational Expressions $\frac { 4 } { 7 x - 3 } - \frac { 3 } { 5 x + 4 }$

question 66

Multiple Choice

Subtract the rational expressions. Be sure to express your answer in simplest form. $\frac { 4 } { 7 x - 3 } - \frac { 3 } { 5 x + 4 }$

• A) \(\frac { - x + 25 } { ( 7 x - 3 ) ( 5 x + 4 ) }\)
• B) \(\frac { x - 25 } { ( 7 x - 3 ) ( 5 x + 4 ) }\)
• C) \(\frac { - x + 25 } { ( 7 x + 3 ) ( 5 x - 4 ) }\)
• D) \(\frac { - x + 41 } { ( 7 x - 3 ) ( 5 x + 4 ) }\)

Understand the impact of capital costs on firms' choice of production techniques.

Calculate the marginal product of labor using its formula.

Understand the implications of the law of diminishing marginal returns in production.

Interpret the relationship between marginal and average products of labor.

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