Equation of the day

Equation of the day

1.solve 3x²+5=32

Solution

3x²+5=32

3x²=32-5 , 3x² = 27

x²=27/3 _hano gatatu igabanya makumyabiri nakarindwi .

x²= 9 _squar root yi 9 ni 3

Ubwo x nigatatu 3

x=3

2 solve simultaneous 4x - y =8

6x + y =22

Solution

4x - y =8

6x + y =22

4x - y =8 /-6.

6x + y =22. /4. Ikimenyetso cya

negative gifata kumubare

Umwe nukuvugako iribufate kumubare hagati ya 6 na 4 .ariko twahisemo 6

-6 irakuba kuri equation ya 4x - y =8

4 irakuba kuri equation ya6x + y =22

-24x + 6y = -48

24x + 4y = 88

-24x na 24 biricana dusigarane

6y=-48

4y=88

10y=40

y=40/10

y=4 ............hano tubonye agaciro ka

y=4 tugiye gushaka agaciro

Ka x = ?

-24x + 6(4)= -48 ....hano y twayisimbuje

Kumubare 4 kuko twabonye

Ko y = 4

-24x + 24 = -48

-24x = -48 - 24 ....hano 24 yagiye inyums

yikimenyetso = ,umubare

uhita uhinduka -24

-24x=-72

x= -72/-24

x=3 ......hano agaciro ka x = 4

S={(3,4)}

Thank you!!!!!!!!!!

Editor: NDICUNGUYE Daniel