Question 911564
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Hi
Apply Distributive Principle (to remove parenthesis) and Combine Like Terms.
-2x^4(x^3+8x^1)+6x^7= -2x^7 - 16x^5 + 6x^7 = 4x^7 - 16x^5 
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{{{a^0 = 1}}}

{{{( x^m )( x^n ) = x^( m + n )}}}****
{{{x^m/x^n=x^(m-n)}}}
{{{(a^p)^q = a^(p*q)}}}

{{{(xy)^n = x^n*y^n}}}