7x2=49x2

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Solution for 7x2=49x2 equation: 



7x^2=49x^2

We move all terms to the left:

7x^2-(49x^2)=0

We add all the numbers together, and all the variables

-42x^2=0

a = -42; b = 0; c = 0;
Δ = b2-4ac
Δ = 02-4·(-42)·0
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$x=\frac{-b}{2a}=\frac{0}{-84}=0$

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