1)25(2-3m)+16(5m-1)=50-75m+80m-16=5m+34
2)20x(2-3x)-8(5x-4)=40-60-40+32=-28
3)ay(2y-3a)-y(ay+5)=2a-3y-a-5y=a-8y
4)-5(-)+3(-2)=-2+5-6
5)
6)
1)25(2-3m)+16(5m-1)=50-75m+80m-16=5m+34
2)20x(2
-3x)-8
(5x-4)=40
-60
-40
+32
=-28![x^{2}](/tpl/images/2053/6963/35e67.png)
3)ay(2y-3a)-y(ay+5
)=2a
-3
y-a
-5
y=a
-8
y
4)-5
(
-
)+3
(
-2
)=-2
+5
-6![n^{4}](/tpl/images/2053/6963/92eab.png)
5)![\frac{2}{5}x^{5}-\frac{3}{5}x^{4}+\frac{6}{5}x^{3} -\frac{2}{5}x^{2}](/tpl/images/2053/6963/e84b6.png)
6)![8p^{3} -12p^{2} q-49pq](/tpl/images/2053/6963/3533d.png)