Question

efetue : a) (4 + x) elevado a 2
B) (x+3y) elevado a 2
C) (7x+1) elevado a 2

Answer 1

$\red{\boxed{A = x {}^{2} + 8x + 16}}\green{✓} \\ </h2><h2>\red{\boxed{B = x {}^{2} + 6xy + 9y {}^{2}}}\green{✓} \\ </h2><h2>\red{\boxed{C = 49x {}^{2} + 14x + 1}}\green{✓}$