Question

calcule:

a) (3+x)2


b)(x+5)2


c) (x+y)2


d)(x+2)2


e)(3x+1)2


f)(2×+1)2


g)(5+3a)2


h)(2a+x)2




OBS: FAZER CONTA COMPLETA!!!! PRF! !!!
É URGENTE


DESTE JÁ AGRADEÇO!!!!


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Answer 1

a)

(3 +x)2

6 +2x

2x= -6

x= -3

b)

(x+5)2

2x +10

2x =-10

x= -5

c)

(x+y)2

2x+2y

2x= -2y

x= -y

d)

(x+2)2

2x +4

2x=-4

x=-2

e)

(3x+1)2

6x+2

6x=-2

x= -2/6 = -1/3

f)

(2x+1)2

4x+2

4x=-2

x=-1/2

g)

(5+3a)2

10+6a

6a= -10

a= -10/6 = -5/3

h)

(2a+x)2

4a+2x

4a= -2x

2a = -x