Question

efetue as operações e simplifique as expressões algébricas:
A) (3y)^2 -y^3 +3y^2
B) (y/2)^5 × y/3 × 3y +y^7 - 9y^5
C) (-1/3x^2)^5 ÷ (2/3x^2)^4 -x+x^2 ​

Answer 1

Resposta:

Explicação passo-a-passo:

A) (3y)^2 -y^3 +3y^2

9y^2 - y^3 + 9y^2 = 0

y^2( 9 - y + 9) = 0

y^2(18 -y) =0

B) (y/2)^5 × y/3 × 3y +y^7 - 9y^5

y^5/32 x y/3 x 3y + y^7 - 9y^5= 0

y^7/32 + y^7 - 9y^5= 0

y^5( Y^2/32 + Y^2 - 9) = 0

C) (-1/3x^2)^5 ÷ (2/3x^2)^4 -x+x^2

-1/243X^10 / 16/81X^8 -X + X^2 = 0

-1/243X^10/ X(16/81X^7 - 1 + X) = 0

-1/243X^9/ 16/81X^7 - 1 + X = 0