1) 4(5х+9у-z) 2) -6(-а-8b+7c) 3) (6p-n-4m)×(1,6) 4) (-2,6a-b+1,4c)×(-m)...

Question

1) 4(5х+9у-z) 2) -6(-а-8b+7c) 3) (6p-n-4m)×(1,6) 4) (-2,6a-b+1,4c)×(-m) 5)-0,7n(7a-2,1+5k)
6) -24(7\12x + 0,5y - 5\6z - 0,3)
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Answer 1

1) 4(5х+9у-z)=20x+36y-4z;
2) -6(-a-8b+7c)=6a+48b-42c;
3) (6p-n-4m)×1,6=9,6p-1,6n-6,4m;
4) (-2,6a-b+1,4c)×(-m)=2,6am+bm-1,4cm;
5) -0,7n(7a-2,1+5k)= -4,9an+1,47n-3,5kn;
6) -24(7/12x+0,5y-5/6z-0,3)= -14x-12y-+20z+80.

Comments

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