Question

e a=3 e b=4 , calcule
a, a²+b²
b,[a+b] ²

Answer 1

a)

${3}^{2} + {4}^{2} \\ 9 + 16 \\ 25$

b)

${(3 + 4)}^{2} \\ {(7)}^{2} \\ 49$

Bons estudos ;)

Answer 2

a=3 e b=4 , calcule  

a, a²+b²  = 3'^2 + 4^2 = 9 + 16 = 25

b,[a+b] ² = (3 + 4)^2 = 7^2 = 49