Question

me ajudem a responder por favor!

a) (3+ x)² =

b) (x +1)² =

c) (3x +2)² =

d) (2x +1)² =

e) (a+ 4b)² =

f) (10x +y)² =

g) (3y + 3a)² =​

Answer 1

Resposta:

a) (3+ x)² =

$9+6x+x^{2}$

b) (x +1)² =

$x^{2} +2x+1$

c) (3x +2)² =

$9x^{2} +12x+4$

d) (2x +1)² =

$4x^{2} +4x+1$

e) (a+ 4b)² =

$a^{2} +8ab+16b^{2}$

f) (10x +y)² =

$100x^{2} +20xy+y^{2}$

g) (3y + 3a)² =​

$9y^{2} +18ay+9a^{2}$