Question

si b=23 y a=-1el valor numerico de la expresion 3b-as(3b-a) es: a.20 b.92 c.5 d.19

Answer 1

3b-a(3b-a)=
3(23-(-1))(3(23)-(-1))=
3(23+1)(3(23+1))=
3(24)(3(24))=
72(72)=