Question

4x elevado a 2 mais 4x mais 4x

Answer 1

4x . 4x + 4x + 4x =

16x^2 + 8x

Answer 2

4x²+4x+4x=0
4x²+8x=0

a=4 b=8 c=0

X= -b±√∆/2.a
X= -b±√b²-4.a.c/2.a
X= -8±√8²-4.4.0/2.4
X= -8±√64-0/8
X= -8±√64/8
X= -8±8/8

X'= -8+8/8=0/8=0

X= -8-8/8= -16/8= -2

S={-2;0}

abraços....