Question

1)determine os polinômios:
a) (7a² - 3ab+ 2b²) - ( 3a² - 5ab- 3b²) + (6ab +c²)=
b)(x+2)×(x²-x-2)=
c)(-45a⁶+27a²) ÷(9a²)=​

Answer 1

Resposta:

(7a2-3ab+2b2)-(3a2-5ab-c2-3b2)+(6ab+c2)=

7a2-3ab+2b2-3a2+5ab+c2+3b2+6ab-c2=

7a2-3a2-3ab+5ab+6ab+2b2+3b2+c2-c2=

4a2+8ab2+5b2