Question

12+3a+3a^2-3a+3b-3a^2-3b+23-3b^2

7m+12n+21m+20n+32n

Answer 1

Respuesta:

12+3a+3a^2-3a+3b-3a^2-3b+23-3b^2

= 12+3a^2+3b-3a^2-3b+23-3b^2

= 12+3b-3b+23-3b^2

= 12+23-3b^2

R= 35-3b^2

Explicación paso a paso:

7m+12n+21m+20n+32n

= 28m+12n+20n+32n

= 28m+64n

R= 4(7m+16n)