Question

(2x+1)2 = (x+1) + (x+2) alguem resolve prfvr​

Answer 1

Resposta:

$(2x+1)2=(x+1)+(x+2)$

$4x+2=x+1+x+2$

$4x+2=2x+3$

$4x-2x=3-2$

$2x=1$

$x=\frac{1}{2}$

Answer 2

Resposta:

Explicação passo-a-passo:

(2x+1)2=(x+1)+(x+2)

=4x+2=x²+2x+x+2

=4x-3x-x²=2-2

=7x-x²=0 (-1)

=x²-7x=0

Fazer Bhaskara

Δ=b²-4*a*c

x=(-b±√Δ)/2*a

Δ=7²-4*1*0

Δ=49

x=(7±√49)/2

=x=7±7/2

=x'=7

=x"=0