Question

Calcule o quadrado da diferença de dois termos:

a)(a-2)²=
b)(3a-5)²=
c)(3x-2y)²=
d)(x-2y⁵)²=
e)(x-½)²=
f)(3m-n/5)²=
g)(2x/3-y/2)²=​

Answer 1

a)

${(a - 2)}^{2} = {a}^{2} - 4a + 4$

b)

${(3a - 5)}^{2} = {9a}^{2} - 30a + 25$

c)

${(3x - 2y)}^{2} = {9x}^{2} - 12xy + {4y}^{2}$

d)

${(x - {2y}^{5} )}^{2} = {x}^{2} - 4x {y}^{5} + 4 {y}^{10}$

e)

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

f)

${(3m - \frac{n}{5}) }^{2} = {9m}^{2} - \frac{6mn}{5} + \frac{ {n}^{2} }{25}$

g)

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