Question

ajuda eu aí pfvr

6- APLICANDO PROPRIEDADE DISTRIBUTIVA, CALCULE
A) (√3 + √2)²=
B) (1-√7)²=
c) (4√2 + 5) (4√2 - 5) =
D) (2 + √10)²=
E) (√11 + √7) (√11 - √7)=
f) (3√3 + √2)​

Answer 1

a) (√3+√2)²= (√3+√2) • (√3+√2)= √9+√6+√6+√4= 3+2√6+2= 5+2√6

b) (1-√7)²= (1-√7) • (1-√7)= 1-√7-√7+√7 = 1-√7

c) (4√2+5)•(4√2-5)= (16√4)(-20√2+5)(20√2-5)-25 = 64-25= 39.

d) (2+√10)²= (2+√10)•(2+√10)= 4+2√10+2√10+(√10)²= 4+4√10+10= 14+4√10.

e) (√11+√7)•(√11-√7)= (√11)²+√77+√77-(√7)²= 11+2√77-7= 4+2√77.

f) (3√3+2)•(3√3+2)= 9√9+6√3+6√3+4= 9•3+6√3+6√3+4= 31+ 12√3.