Question 316901
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