20x(3x+1)=-50×(5-x)= minta bantuan nya kawan kawan

Dengan asumsi soal
20(3x+1) = - 50(5-x)
maka
60x + 20 = -250 + 50x
60x - 50x = - 250 - 20
10 x = - 270
x = - 270 / 10 = - 27

= 20x (3x +1)
= 60x² + 20x

= -50x (5 -x)
= -250x + 50x²