Issolvi (-20)+(2(-20)^2-4(49)(12))div2(449)

$$( - 20 ) + ( 2 ( - 20 ) ^ { 2 } - 4 ( 49 ) ( 12 ) ) \div 2 ( 449 )$$

Evalwa

$$-348444$$

Passi tas-Soluzzjonijiet

Ikkalkula -20 bil-power ta' 2 u tikseb 400.

$$-20+\frac{2\times 400-4\times 49\times 12}{2}\times 449$$

Immultiplika 2 u 400 biex tikseb 800.

$$-20+\frac{800-4\times 49\times 12}{2}\times 449$$

Immultiplika 4 u 49 biex tikseb 196.

$$-20+\frac{800-196\times 12}{2}\times 449$$

Immultiplika 196 u 12 biex tikseb 2352.

$$-20+\frac{800-2352}{2}\times 449$$

Naqqas 2352 minn 800 biex tikseb -1552.

$$-20+\frac{-1552}{2}\times 449$$

Iddividi -1552 b'2 biex tikseb-776.

$$-20-776\times 449$$

Immultiplika -776 u 449 biex tikseb -348424.

$$-20-348424$$

Naqqas 348424 minn -20 biex tikseb -348444.

$$-348444$$

Fattur

$$-348444$$