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Step-by-step explanation:a)a^2+5a+6
The middle number is 5 and the last number is 6.
Factoring means we want something like
(a+_)(a+_)
Which numbers go in the blanks?
We need two numbers that...
Add together to get 5
Multiply together to get 6
Can you think of the two numbers?
Try 2 and 3:
2+3 = 5
2*3 = 6
Fill in the blanks in
(a+_)(a+_)
with 2 and 3 to get...
(a+2)(a+3)
Answer:
(a+2)(a+3))
b)4x2+4x+1
=(2x+1)(2x+1)
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