Step-by-step explanation:
Our polynomial is x²+30x +c with a missing value c
c should make this polynomial expression a perfect square
- Write the expression with a decreasing order of degrees
x²+ 30x+c
- write the terms as factors
x² + 2*15*x +c
- notice that the in the middle we have 2*15*x so our third term will be 15²
x²+2*15*x+15² ⇒ c = 15²=225
- arrange your perfect square
(x+15)²
N is 12
because if you add 4 and 3 you get 7.
84 divided by 7 is 12.
Use 6 tens to get 60 and then 2 ones
use 5 tens to get 50 and 12 ones
Answer:
10
Step-by-step explanation:
If you add all them up you get the answer 10
(This is correct cause i got this answer right hope this helps!)
Answer:cccc
Step-by-step explanation:
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