Question 146873
{{{(-4)3(-2)2(1)9}}}
Since it's all multiplication, you can start from the left and move to the right.
{{{(-4)3(-2)2(1)9=-12(-2)2(1)9}}}
{{{(-4)3(-2)2(1)9=(24)2(1)9}}}
{{{(-4)3(-2)2(1)9=48(1)9}}}
{{{(-4)3(-2)2(1)9=(48)9}}}
{{{(-4)3(-2)2(1)9=432}}}