Question

1) Questão 01

A)7√7+8√7=

B) 10√2+5√2=

C) 10√5-7√5=

D) 7√2-12√2=

E) 8√5-√5=

F) 3√a-4√a+3√a=​

Answer 1

Resposta:

A) $15\sqrt{7}$

B) $15\sqrt{2}$

C) $3\sqrt{5}$

D) $-5\sqrt{2}$

E) $7\sqrt{5}$

F) $2\sqrt{a}$

Explicação passo-a-passo:

A) $(7+8).\sqrt{7}=15.\sqrt{7}$

B) $(10+5).\sqrt{2} =15.\sqrt{2}$

C) $(10-7).\sqrt{5} =3.\sqrt{5}$

D) $(7-12).\sqrt{2} = -5.\sqrt{2}$

E) $(8-1).\sqrt{5} =7.\sqrt{5}$

F) $(3-4+3).\sqrt{a} =(-1+3).\sqrt{a}=2.\sqrt{a}$