84t^2+49t=0

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Solution for 84t^2+49t=0 equation:



84t^2+49t=0
a = 84; b = 49; c = 0;
Δ = b2-4ac
Δ = 492-4·84·0
Δ = 2401
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$t_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$t_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{2401}=49$
$t_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(49)-49}{2*84}=\frac{-98}{168} =-7/12 $
$t_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(49)+49}{2*84}=\frac{0}{168} =0 $

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