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

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

Ovrednoti

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

Koraki rešitve

Pomnožite R_{2} in R_{2}, da dobite R_{2}^{2}.

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

Pomnožite 7 in 5, da dobite 35.

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

Pomnožite 3 in 2, da dobite 6.

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

Združite 4R_{1} in -R_{1}, da dobite 3R_{1}.

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

Odvajajte w.r.t. R_1

$$35R_{2}+3$$