Issolvi 7m^2-1-[m^2+3n-(5-n)-(-3+m^2)]}-(2n+3)

$$7 m ^ { 2 } - 1 - [ m ^ { 2 } + 3 n - ( 5 - n ) - ( - 3 + m ^ { 2 } ) ] \} - ( 2 n + 3 )$$

Evalwa

$$7m^{2}-4n+1$$

Passi tas-Soluzzjonijiet

Biex issib l-oppost ta' 5-n, sib l-oppost ta' kull terminu.

$$7m^{2}-1-\left(m^{2}+3n-5+n-\left(-3+m^{2}\right)\right)$$

Ikkombina 3n u n biex tikseb 4n.

$$7m^{2}-1-\left(m^{2}+4n-5-\left(-3+m^{2}\right)\right)$$

Biex issib l-oppost ta' -3+m^{2}, sib l-oppost ta' kull terminu.

$$7m^{2}-1-\left(m^{2}+4n-5+3-m^{2}\right)$$

Żid -5 u 3 biex tikseb -2.

$$7m^{2}-1-\left(m^{2}+4n-2-m^{2}\right)$$

Ikkombina m^{2} u -m^{2} biex tikseb 0.

$$7m^{2}-1-\left(4n-2\right)$$

Biex issib l-oppost ta' 4n-2, sib l-oppost ta' kull terminu.

$$7m^{2}-1-4n+2$$

Żid -1 u 2 biex tikseb 1.

$$7m^{2}+1-4n$$

Espandi

$$7m^{2}-4n+1$$

Passi tas-Soluzzjonijiet

Biex issib l-oppost ta' 5-n, sib l-oppost ta' kull terminu.

$$7m^{2}-1-\left(m^{2}+3n-5+n-\left(-3+m^{2}\right)\right)$$

Ikkombina 3n u n biex tikseb 4n.

$$7m^{2}-1-\left(m^{2}+4n-5-\left(-3+m^{2}\right)\right)$$

Biex issib l-oppost ta' -3+m^{2}, sib l-oppost ta' kull terminu.

$$7m^{2}-1-\left(m^{2}+4n-5+3-m^{2}\right)$$

Żid -5 u 3 biex tikseb -2.

$$7m^{2}-1-\left(m^{2}+4n-2-m^{2}\right)$$

Ikkombina m^{2} u -m^{2} biex tikseb 0.

$$7m^{2}-1-\left(4n-2\right)$$

Biex issib l-oppost ta' 4n-2, sib l-oppost ta' kull terminu.

$$7m^{2}-1-4n+2$$

Żid -1 u 2 biex tikseb 1.

$$7m^{2}+1-4n$$