Question

1-Dados os Polinomios

A=(√3-√7+2)

B=(3√7+1-5√3)

C=(-2-√7+4√3)

Calcule

A)A+B+C

B)A-B-C


Pfv Façam passo a passo

Answer 1

Resposta:

A)

A+B+C

=√3-√7+2 + 3√7+1-5√3 -2-√7+4√3

=√3+4√3-5√3-√7-√7+ 3√7+1 -2+2

=5√3-5√3-2√7+ 3√7+1 -2+2

=0+√7+1  =1+√7

B)

A-B-C

√3-√7+2 -( 3√7+1-5√3)-( -2-√7+4√3)

√3-√7+2 -3√7-1+5√3+2+√7-4√3

√3-4√3+5√3+√7-√7 -3√7-1+2+2

=2√3 -3√7 +3

Answer 2

a) A+B+C

= (√3-√7+2)+(3√7+1-5√3)+(-2-√7+4√3)

= √3-√7+2+3√7+1-5√3-2-√7+4√3

=√3-5√3+4√3-√7+3√7-√7+2+1-2

=0+√7+1=√7+1 ✅

b) A-B-C

= (√3-√7+2)-(3√7+1-5√3)-(-2-√7+4√3)

=√3-√7+2-3√7-1+5√3+2+√7-4√3

=√3+5√3-4√3-√7-3√7+√7+2-1+2

=2√3-3√7+3 ✅