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

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

Calcula

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

Passos de solució

Multipliqueu R_{2} per R_{2} per obtenir R_{2}^{2}.

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

Multipliqueu 7 per 5 per obtenir 35.

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

Multipliqueu 3 per 2 per obtenir 6.

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

Combineu 4R_{1} i -R_{1} per obtenir 3R_{1}.

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

Diferencieu R_1

$$35R_{2}+3$$