Solve 4R_{1}+7R_{2}5R_{1}-3R_{2}2R_{2}-R_{1}

$$4 R _ { 1 } + 7 R _ { 2 } 5 R _ { 1 } - 3 R _ { 2 } 2 R _ { 2 } - R _ { 1 }$$

Evaluate

$$35R_{1}R_{2}+3R_{1}-6R_{2}^{2}$$

Solution Steps

Multiply R_{2} and R_{2} to get R_{2}^{2}.

$$4R_{1}+7R_{2}\times 5R_{1}-3R_{2}^{2}\times 2-R_{1}$$

Multiply 7 and 5 to get 35.

$$4R_{1}+35R_{2}R_{1}-3R_{2}^{2}\times 2-R_{1}$$

Multiply 3 and 2 to get 6.

$$4R_{1}+35R_{2}R_{1}-6R_{2}^{2}-R_{1}$$

Combine 4R_{1} and -R_{1} to get 3R_{1}.

$$3R_{1}+35R_{2}R_{1}-6R_{2}^{2}$$

Differentiate w.r.t. R_1

$$35R_{2}+3$$