Question

6-Determine a solução das seguintes equação:
-2x2+14x=0

Answer 1

x¹ = 0

x² = 7

$\sf {\Huge ——————— }$

Coeficientes

a = -2

b = 14

c = 0

Delta

$\sf \green{ \Delta = } \red{14^{2}- } \orange{ 4} \sf \purple{.(-2) } \pink{ .0 } \\ \blue{\Delta = }\sf \green{ 196 } \red{- } \orange{ 4 } \sf \purple{ .(-2) } \pink{.0 } \\ \sf\blue{\Delta}\orange{ 196 } \green{ -}\sf \red{ -8 } \orange{ .0} \\ \sf\purple{\Delta =}\red{ 196 }$

Bhaskara

$\sf \green{\frac{-14\pm \sqrt{196}}{2.(-2)} } \\ \sf \red{ \frac{-14 \pm 14}{-4} } \\ \\ \sf\orange{\frac{-14 + 14}{-4} =} \sf \purple{ \frac{0}{-4} } \pink{ = 0}\\ \sf \blue{ \frac{-14-14}{-4} } \sf \green{ = \frac{-14}{-4} } \red{=7 }$