Question

16.calcule. A)7x°(2x-5) B) (3a²-2a-1)°5a C)-3x°(4x²-3x+1) D)⅖A°(A-¼)​

Answer 1

Resposta:

a- 7x.2x-7x.5 = 14x²-35x

b- (3a²-2a-1).5a = 15a³-10a²-5a

c- -3x.4x²-3x.(-3x)-3x = -12x³+9x²-3x

d- 2/5a.a-2/5a.1/4 = 2/5a²-1/10a

Explicação passo a passo: