Question

(X+y)2=
(a+5)2=
(1+m)2=
(X+2)2=

Answer 1

Explicação passo-a-passo:

$(x + y) {}^{2}$

x²+2xy+y²

$(a + 5) {}^{2}$

$a {}^{2} + 2 a \times 5 + 5 {}^{2}$

a²+10a+25

$(1 + m) {}^{2}$

$1 {}^{2} + 2 \times 1 m + m {}^{2}$

$1 + 2m + m {}^{2}$

m²+2m+1

$(x + 2) {}^{2}$

$x {}^{2} + 2 \times 2 \times 2 + 2 {}^{2}$

$x {}^{2} + 2x \times 2 + 2 {}^{2}$

x²+4x+4