Resposta:
Explicação passo a passo:
.
. Fatoração por agrupamento
a) 8x² + 8y + mx² + my = 8 . (x² + y) + m . (x² + y)
. = (x² + y) . (8 + m)
b) 7a - 21y² + ab - 3by² = 7 . (a - 3y²) + b . (a - 3y²)
. = (a - 3y²) . (7 + b)
c) 3ax + 3ay - bx - by = 3a . (x + y) - b . (x + y)
. = (x + y) . (3a - b)
d) x³ + x² - x - 1 = x² . (x + 1) - 1 . (x + 1)
. = (x + 1) . (x² - 1)
. = (x + 1) . (x + 1). (x - 1)
. = (x + 1)² . (x - 1)
(Espero ter colaborado)
8x^2+8y +mx^2+my
(x^2+y)×(8+m)
7a-21y^2 +ab-3by^2
(a-3y^2)×(7+b)
3a×+3ay-bx-by
(x+y)×(3a-b)
x^3+x^2 -x-1
(x+1)^2 × (x-1)
Explicação passo-a-passo:
[tex]8x {}^{2} + 8y + mx {}^{2} + my = \\ 8x {}^{2} + 8y + mx {}^{2} + my \\ 8(x {}^{2} + y) + mx {}^{2} + my \\ 8x {}^{2} + 8x + mx {}^{2} + my \\ 8(x {}^{2} + y) + mx(x {}^{2} + y) \\ (x {}^{2} + y) \times (8 + m) \\ resposta \\ (x {}^{2} + y) \times (8 + m) \\ \\ 7a - 21y {}^{2} + ab - 3by {}^{2} = \\ 7a - 21y {}^{2} + ab - 3by {}^{2} \\ 7(a - 3y {}^{2}) + ab - 3by {}^{2} \\ 7a - 21y {}^{2} + ab - 3by {}^{2} \\ 7(a - 3y {}^{2}) + b \times (a - 3y) {}^{2} \\ (a - 3y {}^{2}) \times (7 + b) \\ resposta \\ (a - 3y {}^{2}) \times (7 + b) \\ \\ 3ax + 3ay - bx - by = \\ 3ax + 3ay - bx - by \\ 3ax(x + y) - by - by \\ 3ax + 3ay - bx -by \\ 3ax(x + y) - bx(x + y) \\ (x + y) \times (3a - b) \\ resposta \\ (x + y) \times (3a - b) \\ \\ x {}^{3} + x {}^{2} - x - 1 = \\ x {}^{3} + x {}^{2} - x - 1 \\ x {}^{2} \times (x + 1) - x - 1 \\ x {}^{3} + x {}^{2} - x - 1 \\ (x + 1) \times (x {}^{2} - 1) \\ x {}^{2} - 1 \\ x {}^{2} - 1 {}^{2} \\ (x - 1) \times (x + 1) \\ (x + 1) \times (x {}^{2} - 1) \\ (x + 1) \times (x - 1) \times (x + 1) \\ (x + 1) {}^{2} \times (x - 1) \\ resposta \\ (x + 1) {}^{2} \times (x - 1)[/tex]
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Lista de comentários
Resposta:
Explicação passo a passo:
.
. Fatoração por agrupamento
.
a) 8x² + 8y + mx² + my = 8 . (x² + y) + m . (x² + y)
. = (x² + y) . (8 + m)
.
b) 7a - 21y² + ab - 3by² = 7 . (a - 3y²) + b . (a - 3y²)
. = (a - 3y²) . (7 + b)
.
c) 3ax + 3ay - bx - by = 3a . (x + y) - b . (x + y)
. = (x + y) . (3a - b)
.
d) x³ + x² - x - 1 = x² . (x + 1) - 1 . (x + 1)
. = (x + 1) . (x² - 1)
. = (x + 1) . (x + 1). (x - 1)
. = (x + 1)² . (x - 1)
.
(Espero ter colaborado)
Resposta:
8x^2+8y +mx^2+my
(x^2+y)×(8+m)
7a-21y^2 +ab-3by^2
(a-3y^2)×(7+b)
3a×+3ay-bx-by
(x+y)×(3a-b)
x^3+x^2 -x-1
(x+1)^2 × (x-1)
Explicação passo-a-passo:
[tex]8x {}^{2} + 8y + mx {}^{2} + my = \\ 8x {}^{2} + 8y + mx {}^{2} + my \\ 8(x {}^{2} + y) + mx {}^{2} + my \\ 8x {}^{2} + 8x + mx {}^{2} + my \\ 8(x {}^{2} + y) + mx(x {}^{2} + y) \\ (x {}^{2} + y) \times (8 + m) \\ resposta \\ (x {}^{2} + y) \times (8 + m) \\ \\ 7a - 21y {}^{2} + ab - 3by {}^{2} = \\ 7a - 21y {}^{2} + ab - 3by {}^{2} \\ 7(a - 3y {}^{2}) + ab - 3by {}^{2} \\ 7a - 21y {}^{2} + ab - 3by {}^{2} \\ 7(a - 3y {}^{2}) + b \times (a - 3y) {}^{2} \\ (a - 3y {}^{2}) \times (7 + b) \\ resposta \\ (a - 3y {}^{2}) \times (7 + b) \\ \\ 3ax + 3ay - bx - by = \\ 3ax + 3ay - bx - by \\ 3ax(x + y) - by - by \\ 3ax + 3ay - bx -by \\ 3ax(x + y) - bx(x + y) \\ (x + y) \times (3a - b) \\ resposta \\ (x + y) \times (3a - b) \\ \\ x {}^{3} + x {}^{2} - x - 1 = \\ x {}^{3} + x {}^{2} - x - 1 \\ x {}^{2} \times (x + 1) - x - 1 \\ x {}^{3} + x {}^{2} - x - 1 \\ (x + 1) \times (x {}^{2} - 1) \\ x {}^{2} - 1 \\ x {}^{2} - 1 {}^{2} \\ (x - 1) \times (x + 1) \\ (x + 1) \times (x {}^{2} - 1) \\ (x + 1) \times (x - 1) \times (x + 1) \\ (x + 1) {}^{2} \times (x - 1) \\ resposta \\ (x + 1) {}^{2} \times (x - 1)[/tex]