Answer:
(n + 1)(3n + 7)
Step-by-step explanation:
3n² + 10n + 7
Consider the factors of the product of the n² term and the constant term which sum to give the coefficient of the n- term.
product = 3 × 7 = 21 and sum = + 10
The factors are + 3 and + 7
Use these factors to split the n- term
3n² + 3n + 7n + 7 ( factor the first/second and third/fourth terms )
3n(n + 1) + 7(n + 1) ← factor out (n + 1) from each term
= (n + 1)(3n + 7) ← in factored form
To be honest I dont really understand this question... if i did i would answer but... i love horses xp
The conditions are needed to be able to answer the question
The equation of a circle:
(h, k) - a coordinates of the center
r - a radius
A diameter d = 2r
We have
Answer: d = 2 · 10 = 20
