Question

dados A = x² + 3x - 2,b = x + 2 e c= x -3, calcule​

Answer 1

Explicação passo-a-passo:

a) A.B= x+2(x^2+3x-2)

=x^3+3x^2-2x+2x^2+6x-4

=x^3+5x^2+4x-4

A.C=x-3(x^2+3x-2)

=x^3+3x^2-2x-3x^2-9x+6

=x^3-11x+6

(A.B)+(A.C)=2x^3+5x^2-7X+2

b)B+C=x+2+x-3

=2x-1

(B+C)A=2x-1(x^2+3x-2)

=2x^3+6x^2-4x-x^2-3x+2

=2x^3+5x^2-7x+2