You can put this solution on YOUR website! is this the right answer?
Multiply: (7x^4y^2)(-8x^3y^4) = -(56x^7y^6)
add exponents when multiplying, example x^2 * x^3 = x^5 or x^3 * x^4 = x^7
(7x^4y^2)(-8x^3y^4)
this is same as
7 * x^4 * y^2 * -8 * x^3 * y^4
which is the same as
7 * -8 * x^4 * x^3 * y^2 * y^4
-56 * x^7 * y^6
which is same as
-56x^7y^6 or -(56x^7y^6)
so yes you had right answer
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