Question

Resolva a equação: -2x+4+x(5x-2)=5x²+12

Answer 1

-2x + 4 + x.(5x - 2) = 5x² + 12
-2x + 4 + 5x² - 2x = 5x² + 12
-2x - 2x + 5x² - 5x² = 12 - 4
-4x = 8
   x = 8/-4
   x = -2
 
  
   

Answer 2

-2x+4+x(5x-2)=5x²+12
-2x+4+5x²-2x=5x²+12
-2x+5x²-2x-5x²=12-4
-4x=8 multiplica por (-1)
4x=-8
x=-8/4
x=-2