Question

pó 1983 hate
$2x2 + 2x \div - x55y \div$
1u38​

Answer 1

Resposta:

A-B= (x²-2x)-(x²-x+1)

= x²-2x-x²+x-1

= -x-1

____________________

A.B= (x²-2x)-(x²-x+1)

= 2x²-x³+x²-2x³+2x²-2x

= -3x³+5x²-2x

espero ter ajudado