a)
-3*4*(-3 1/4) *(-3)=-3*4*(-13/4)*(-3)=-3*(-13)*(-3)=-117b)
-2,8a * 40ax * (-1) * a²=112a⁴xc)
(-6y) * (-y) * (-0,2) * y=-1,2y³d)
(2 1/2) * x * (- 1 4/5) * (-10) xy=5/2*x*(-9/5)*(-10)xy=45x²ye)
-4 * (-x) * (-y) * (-y) * x * y²=4x²y⁴f)
(-x) * (-x) * (-15) * (-x) * y ² x ² y=15x⁵y³
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a)
-3*4*(-3 1/4) *(-3)=-3*4*(-13/4)*(-3)=-3*(-13)*(-3)=-117
b)
-2,8a * 40ax * (-1) * a²=112a⁴x
c)
(-6y) * (-y) * (-0,2) * y=-1,2y³
d)
(2 1/2) * x * (- 1 4/5) * (-10) xy=5/2*x*(-9/5)*(-10)xy=45x²y
e)
-4 * (-x) * (-y) * (-y) * x * y²=4x²y⁴
f)
(-x) * (-x) * (-15) * (-x) * y ² x ² y=15x⁵y³