Question

Resolva as equações

1) X (2X + 3) =
2) 5X (5Y + 1) =
3) 3xy (4 + 2 - 3xy) =
4) 5Y ( 6 - 2) =
5) 2X (X + 3) (X - 2) =​

Answer 1

Explicação passo-a-passo:

1) X (2X + 3) = 2x²+3x

2) 5X (5Y + 1) =5xy+5x

3) 3xy (4 + 2 - 3xy) =12xy+6xy-9x²y²=9x²y²+18xy

4) 5Y ( 6 - 2) =30y-10y=20y

5) 2X (X + 3) (X - 2) =2x(x²-2x+3x-6)

=2x(x²+x-6)

= 2x³+2x²-12x