-8x^3 +47x^2 -23x-60
explicação passo a passo
(-x+5)(8x^2 +-7x-12)
(-x+5)×(8x^2 +-7x-12)
-x×(8x^2 -7x-12)+5(8x^2 -7x-12)
-x×(8x^2 -7x-12)
-x×8x^2 -x×(-7x)-x×(-12)
-8x^3 -x×(-7x)-x×(-12)
-8x^3 +x×7x-x×(-12)
-x×8^2 -x×(-7x)-x×(-12)
-8x^3 +7x^2 -x×(-12)
-8x^3 +7x^2 +x×12
-8x^3 +7x^2 +12x
-8x^3 +7x^2 +12x+5(8x^2 -7x-12)
5(8x^2 -7x-12)
5×8x^2 -5×7x-5×12
40x^2 -5×7x-5×12
40x^2 -35x-5×12
40x^2 -35x-60
-x×(-8x^2 -7x-12)+5(8x^2 -7x-12)
-8x^3 +7x^2 +12x+40x^2 -35x-60
7x^2 +40x^2
(7+40)x^2
47x^2
-8x^3 +47x^2 +12x-35x-60
12x-35x
(12-35)x
-23x
resposta
-8x^3 -47x^2 -23x-60
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Lista de comentários
-8x^3 +47x^2 -23x-60
explicação passo a passo
(-x+5)(8x^2 +-7x-12)
(-x+5)×(8x^2 +-7x-12)
-x×(8x^2 -7x-12)+5(8x^2 -7x-12)
-x×(8x^2 -7x-12)
-x×8x^2 -x×(-7x)-x×(-12)
-8x^3 -x×(-7x)-x×(-12)
-x×8x^2 -x×(-7x)-x×(-12)
-8x^3 +x×7x-x×(-12)
-x×8^2 -x×(-7x)-x×(-12)
-8x^3 +7x^2 -x×(-12)
-x×8x^2 -x×(-7x)-x×(-12)
-8x^3 +7x^2 +x×12
-x×8x^2 -x×(-7x)-x×(-12)
-8x^3 +7x^2 +12x
-x×(8x^2 -7x-12)+5(8x^2 -7x-12)
-8x^3 +7x^2 +12x+5(8x^2 -7x-12)
-x×(8x^2 -7x-12)+5(8x^2 -7x-12)
5(8x^2 -7x-12)
5×8x^2 -5×7x-5×12
40x^2 -5×7x-5×12
5×8x^2 -5×7x-5×12
40x^2 -35x-5×12
5×8x^2 -5×7x-5×12
40x^2 -35x-60
-x×(-8x^2 -7x-12)+5(8x^2 -7x-12)
-8x^3 +7x^2 +12x+40x^2 -35x-60
7x^2 +40x^2
(7+40)x^2
47x^2
-8x^3 +7x^2 +12x+40x^2 -35x-60
-8x^3 +47x^2 +12x-35x-60
-8x^3 +7x^2 +12x+40x^2 -35x-60
12x-35x
(12-35)x
-23x
-8x^3 +7x^2 +12x+40x^2 -35x-60
-8x^3 +47x^2 -23x-60
resposta
-8x^3 -47x^2 -23x-60