Question

Dau coroana urgent. trebuie a b c d e f

Answer 1

A) (3+5)^2=3^2*2×3*5+5^2=9+30+25=64

3^2+5^2=9+25=34

(3+5)^2 > 3^2+5^2

B)

(8-5)^2=8^2-2*8*5+5^2=64-80+25=9

8^2-5^2=64-25=39

(8-5)^2. < 8^2-5^2

C)

10^2=100

6^2+8^2=36+64=100

10^2. = 6^2+8^2

D)

(6÷3)^2=36÷9=4

6^2÷3^2=36÷9=4

(6÷3)^2. = 6^2÷3^2

E)

(7×5)^2=49×25=1225

7^2×5^2=49×25=1225

(7×5)^2. = 7^2×5^2

F)

3^3=27

1^3+2^3=(1+2)(1^2-1×2+2^2)