Question

Valor numerico 4x-5x2 para x=-3

Answer 1

4(-3)-(5(-3))2-- > -12 - (15)2 -> -12 - 225 --> -237

Answer 2

4x-5x2=
4×(-3)-5×(-3)×2=
-12-(5×(-6))=
-12-(-30)=
-12+30= 18
Respuesta: 18