Issolvi (10sqrt{2}+14)(10sqrt{2}-14)

$$(10 \sqrt{ 2 } +14)(10 \sqrt{ 2 } -14)$$

Evalwa

$$4$$

Passi tas-Soluzzjonijiet

Il-multiplikazzjoni tista' tiġi ttrasformata fid-differenza tal-kwadrati li jużaw ir-regola: \left(a-b\right)\left(a+b\right)=a^{2}-b^{2}.

$$\left(10\sqrt{2}\right)^{2}-14^{2}$$

Espandi \left(10\sqrt{2}\right)^{2}.

$$10^{2}\left(\sqrt{2}\right)^{2}-14^{2}$$

Ikkalkula 10 bil-power ta' 2 u tikseb 100.

$$100\left(\sqrt{2}\right)^{2}-14^{2}$$

Il-kwadrat ta' \sqrt{2} huwa 2.

$$100\times 2-14^{2}$$

Immultiplika 100 u 2 biex tikseb 200.

$$200-14^{2}$$

Ikkalkula 14 bil-power ta' 2 u tikseb 196.

$$200-196$$

Naqqas 196 minn 200 biex tikseb 4.

$$4$$

Fattur

$$2^{2}$$