Which expression is equivalent to -3(2m-1)-n

-3(2m-1)-n

First we multiply -3 to the first term of the expression

> ( -3*2m + (-3)*(-1) ) - n

> ( -6m + 3 ) - n

> -6m -n + 3

Then, we divide and multiply by -6, (the expression remains the same)


> (-6/-6)* (-6m -n + 3)

> -6*[m + (n/6) - 1/2]

The answer is -6*[m + (n/6) - 1/2]

i = 2 / - 5

step-by-step explanation:

evaluation of ( 2 - 4 ) ( p + q ) when p = 2 and q = 5 i, by putting values of p and q,                                                                    

0 = ( 2 - 4 ) ( p + q )0 = ( 2 - 4 ) ( 2 + 5 i ),   by multiplying these0 = ( 4 + 10 i - 8 - 20 i )0 = 4 - 8 + 10 i - 20 i0 = - 4 -10 i   0 = 2 ( - 2 - 5 i )0 / 2 = - 2 - 5 i- 2 - 5 i = 0- 5 i = 2i = 2 / - 5