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-2/5a-4=-6/15a-24
We move all terms to the left:
-2/5a-4-(-6/15a-24)=0
Domain of the equation: 5a!=0
a!=0/5
a!=0
a∈R
Domain of the equation: 15a-24)!=0We get rid of parentheses
a∈R
-2/5a+6/15a+24-4=0
We calculate fractions
(-30a)/75a^2+30a/75a^2+24-4=0
We add all the numbers together, and all the variables
(-30a)/75a^2+30a/75a^2+20=0
We multiply all the terms by the denominator
(-30a)+30a+20*75a^2=0
We add all the numbers together, and all the variables
30a+(-30a)+20*75a^2=0
Wy multiply elements
1500a^2+30a+(-30a)=0
We get rid of parentheses
1500a^2+30a-30a=0
We add all the numbers together, and all the variables
1500a^2=0
a = 1500; b = 0; c = 0;
Δ = b2-4ac
Δ = 02-4·1500·0
Δ = 0
Delta is equal to zero, so there is only one solution to the equation
Stosujemy wzór:$a=\frac{-b}{2a}=\frac{0}{3000}=0$
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