The coefficient of the second term of the trinomial (4a+5)² = 16a² + Ba + 25 is 40
What is the coefficient of the second term of the trinomial?
From the question, we have the following parameters that can be used in our computation:
(4a+5)² = 16a² + Ba + 25
When expanded, we have
16a² + 40a + 25 = 16a² + Ba + 25
By comparison, we have
Ba = 40a
Divide
B = 40
Hence, the coefficient of the second term of the trinomial is 40