Answer:
1. Twice the amount of n squared
2. n cubed plus n squared
3. Eighth the amount of a minus 7
4. Three-fifth of the sum of both b and d
5. x, y squared and z
n=1 x=2 v=4
1. (v+7)/(v^2+4v-21)
= 11/(16+16-21)
= 11/11
2. 30x^3/10x
= 30(2)^3/10(2)
= 240/20
3. (n^2+6n+5)/(n+1)
= (1^2+6(1)+5)/(1+1)
= (1+6+5)/2
= 12/2
Hope it helps ^_^
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Answers & Comments
Answer:
A.
1. Twice the amount of n squared
2. n cubed plus n squared
3. Eighth the amount of a minus 7
4. Three-fifth of the sum of both b and d
5. x, y squared and z
B.
n=1 x=2 v=4
1. (v+7)/(v^2+4v-21)
= 11/(16+16-21)
= 11/11
= 1
2. 30x^3/10x
= 30(2)^3/10(2)
= 240/20
= 12
3. (n^2+6n+5)/(n+1)
= (1^2+6(1)+5)/(1+1)
= (1+6+5)/2
= 12/2
= 6
Hope it helps ^_^