Question

calcule as contas abaixo:

Answer 1

a)

$(x- \frac{1}{2} ) ^{2} = x^{2} -x+ \frac{1}{4}$

b)

$(x- \frac{2}{3} ) ^{2} = x^{2} - \frac{4}{3} x+ \frac{4}{9}$

c)

$( y^{2} - \frac{1}{4} ) ^{2}= y^{4} - \frac{1}{2 } y^{2} + \frac{1}{16}$

d)

$( \frac{x}{2} - \frac{y}{2} ) ^{2} = \frac{ x^{2} }{4} - \frac{1}{2}xy+ \frac{ y^{2} }{4}$

e)

$(x+ \frac{1}{2} ) ^{2} = x^{2} +x+ \frac{1}{4}$

f)

$(a+ \frac{2}{3} ) ^{2} = a^{2} + \frac{4}{3}a + \frac{4}{9}$