Question

3)Simplifique as expressões algébrica: a)5x+4y+5x-7y= b)10x-5x= c)(5x).(4x²)= d)27x³:9x e)9x-3x²+7x+12x²= f)(4x).(7x³)=

Answer 1

Resposta:

Explicação passo-a-passo:

a) 10x - 3y

b) 5x

c) 20x³

d) 3x²

e) 9x² + 16x

f) 28x^4

Answer 2

Oie, Td Bom?!

a)

$= 5x + 4y + 5x - 7y$

$= 10x + 4y - 7y$

$= 10x - 3y$

b)

$= 10x - 5x$

$= 5x$

c)

$= (5x) \: . \: (4x {}^{2} )$

$= 5x \: . \: 4x {}^{2}$

$= 20x {}^{3}$

d)

$= 27x {}^{3} \div 9x$

$= 3x {}^{2}$

e)

$= 9x - 3x {}^{2} + 7x + 12x {}^{2}$

$= 16x - 3x {}^{2} + 12x {}^{2}$

$= 16x + 9x {}^{2}$

f)

$= (4x) \: . \: (7x {}^{3} )$

$= 4x \: . \: 7x {}^{3}$

$= 28x {}^{4}$

Att. Makaveli1996