Question

Sejam os polinômios P= x² + 3x – 4 e Q= x² +2, determine: a) P+Q b) P-Q c) P•Q

Answer 1

Resposta:

a)P+Q

x²+3x-4+x²+2= 2x²+3x-2

b)P-Q

x²+3x-4-(x²+2)= x²+3x-4-x²-2= 3x-6

c)P×Q

x²+3x-4.(x²+2)= x²+3x-4x²-8= 5x²+3x-8