SOLUTION: "I need your help on solving quadratic numbers." my promblem that i have on my homework is 6t2+5=2t2+1. this is what i had did i did foil making the promblem 12t2-6t2+10t2-5 i adde
Question 247339: "I need your help on solving quadratic numbers." my promblem that i have on my homework is 6t2+5=2t2+1. this is what i had did i did foil making the promblem 12t2-6t2+10t2-5 i added like terms getting 16t2-5. Then i got confusede and stoped Found 2 solutions by checkley77, ankor@dixie-net.com:Answer by checkley77(12844) (Show Source):
You can put this solution on YOUR website! 6t^2+5=2t^2+1
6t^2-2t^2+5-1=0
4t^2+4=0
4(t^2-1)=0
4(t+1)(t-1)=0
t+1=0
t=-1 ans.
t-1=0
t=1 ans.
You can put this solution on YOUR website! Why would you foil this?
:
Assuming the problem is
6x^2 + 5 = 2x^2 + 1
:
6x^2 - 2x^2 = -5 + 1
:
4x^2 = -4
Divide both sides by 4
x^2 = -1
x =
x = i
:
:
Check solution in original equation
6(i^2) + 5 = 2(i^2) + 1
We know that i^2 = -1
6(-1) + 5 = 2(-1) + 1
-6 + 5 = -2 + 1
-1 = -1
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