Question

1) Determine os polinômios que representam a seguir:

A) (15a – 7b + 4c) + (- 8b + 3c – 9ª) = C) (x² - 3xy + y² - x²y²) – (- x² - 5x²y² - y² - 3xy) =

B) ( 2y² - 3ay + 4a²) – (ay – 5y² - a²) = D) x² + y² - 5xy + 2x² + 8xy – 3y² =

Answer 1

Resposta:

a) (6a–15b+7c)

b) (5a²–4ay+7y²)

c) (4x²y²+2x²+2y²)

d) (3x²+3xy–2y²)

Explicação passo-a-passo:

a) 15a-9a=6a

-7b -8b= -15b

4c + 3c= 7c

( 6a-15b+7c)

b) 3ay-ay= 2ay

4a²+a²= 5a²

2y²+5y²=7y²

(5a²–4ay+7y²)

c) x²+x²=2x²

–3xy+3xy= 0

–x²y²+5x²y²= 4x²y²

y²+y²=2y²

(4x²y²+2x²+2y²)

d) x²+2x²= 3x²

–5xy+8xy=3xy

y²–3y²= –2y²

(3x²+3xy–2y²