Issolvi sqrt{4}(7a+6ab+sqrt{4})-2(-7ab-3a+2)=

$$\sqrt { 4 } ( 7 a + 6 a b + \sqrt { 4 } ) - 2 ( - 7 a b - 3 a + 2 ) =$$

Evalwa

$$26ab+20a$$

Passi tas-Soluzzjonijiet

Ikkalkula l-għerq kwadrat ta' 4 u ikseb 2.

$$2\left(7a+6ab+\sqrt{4}\right)-2\left(-7ab-3a+2\right)$$

Ikkalkula l-għerq kwadrat ta' 4 u ikseb 2.

$$2\left(7a+6ab+2\right)-2\left(-7ab-3a+2\right)$$

Uża l-propjetà distributtiva biex timmultiplika 2 b'7a+6ab+2.

$$14a+12ab+4-2\left(-7ab-3a+2\right)$$

Uża l-propjetà distributtiva biex timmultiplika -2 b'-7ab-3a+2.

$$14a+12ab+4+14ab+6a-4$$

Ikkombina 12ab u 14ab biex tikseb 26ab.

$$14a+26ab+4+6a-4$$

Ikkombina 14a u 6a biex tikseb 20a.

$$20a+26ab+4-4$$

Naqqas 4 minn 4 biex tikseb 0.

$$20a+26ab$$

Iddifferenzja w.r.t. a

$$26b+20$$