Question

Resolva a Equação (x + 4)² - 8x = 916

Answer 1

Resposta:

OLÁ!!!!!

$x {}^{2} + 8x + 16 - 8x = 916$

$x {}^{2} + 8x + 16 - 8x = x {}^{2} + 16$

$x {}^{2} + 16 = 916$

$x {}^{2} = 916 - 16$

$916 - 16 = 900$

$x {}^{2} = 900$

$x = + \sqrt{900}$

30 × 30=900 A RAIZ QUADRADA de 900 E 30

$\boxed{\boxed { x = 30 }}$

Answer 2

Resposta:

2

+8x+16−8x=916

x {}^{2} + 8x + 16 - 8x = x {}^{2} + 16x

2

+8x+16−8x=x

2

+16

x {}^{2} + 16 = 916x

2

+16=916

x {}^{2} = 916 - 16x

2

=916−16

916 - 16 = 900916−16=900

x {}^{2} = 900x

2

=900

x = + \sqrt{900}x=+

900

30 × 30=900 A RAIZ QUADRADA de 900=

x=30