giraffegirl2 giraffegirl2
  • 04-04-2019
  • Mathematics
contestada

solve by completing y^2+7y+12=0​

solve by completing y27y120 class=

Respuesta :

chikafujiwara
chikafujiwara chikafujiwara
  • 04-04-2019

Answer:

y = -3,-4

Step-by-step explanation:

Factor the equation, which gives you (y+3)(y+4)=0

Then, all you do is find the values that give the equation an answer of 0.

Since anything times 0 is 0, all you have to do is make one of the (y+x) values equal 0.

Since -3 and -4 added to 3 and 4 make 0 the answers are -3 and -4.

You can check by plugging it back into the equation or graphing it.

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