Question

Alguém sabe responder pfvr gente!!​

Answer 1

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

(x+2).(x+2)

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

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

b)(3x+2$)^{2}$

(3x+2).(3x+2)

9$x^{2}$+6x+6x+4

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

c)(2x+1$)^{2}$

(2x+1).(2x+1)

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

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

d)(5+3x$)^{2}$

(5+3x).(5+3x)

25+15x+15x+$9x^{2}$

9$x^{2}$+30x+25

e)(2x-5$)^{2}$

(2x-5).(2x+5)

4$x^{2}$+10x-10x-25

$4x^{2}$-25

f)(6y-4$)^{2}$

(6y-4).(6y-4)

36$y^{2}$-24y-24y+16

$36y^{2}$-48y+16

g)(3x-2y$)^{2}$

(3x-2y).(3x-2y)

9$x^{2}$-6xy-6xy+4$y^{2}$

$9x^{2}$-12xy+4$y^{2}$

h)(2x-b$)^{2}$

(2x-b).(2x-b)

$4x^{2}$-2xb-2xb+$b^{2}$

$4x^{2}$-4xb+$b^{2}$

i)(x+y).(x-y)

$x^{2}$-xy+xy-$y^{2}$

$x^{2}$-$y^{2}$

j)(y-7).(y+7)

$y^{2}$+7y-7y-49

$y^{2}$-49

k)(x+3).(x-3)

$x^{2}$-3x+3x-9

$x^{2}$-9

l)(2x+5).(2x-5)

$4x^{2}$-10x+10x-25

$4x^{2}$-25

m)(x+10$)^{3}$

(x+10).(x+10).(x+10)

$x^{2} +10x+10x+100.(x+10)$

$x^{2} +20x+100.(x+10)$

$x^{3} +20x^{2} +100x+10x^{2} +200x+1.000$

$x^{3} +20x^{2} +10x^{2} +100x+200x+1.000$

$x^{3} +30x^{2} +300x+1.000$

n)(3y-1$)^{3}$

$9y^{2} -3y+9y-1.(3y-1)$

$9y^{2}-6y+1.(3y-1)$

$27y^{3}-18y+3y+6y-9y^{2} -1$

$27y^{3}-18y+9y-9y^{2} -1$

$27y^{3}-9y^{2}-9y-1$

espero ter ajudado