Question

how do you do 16a^2+40q+25

Answer 1

What is it you would like to do?

Answer 2

factor

Answer 3

\[16a^2+40a+25\] to make it clearer.

Answer 4

\[16a^2+40a+25 = (4a +5)(4a+5)= (4a+5)^2\]

Answer 5

did you do it with like the trial and error method?

Answer 6

@Kimberlina the method for this is calculate 25*16 = 400, now factorize the middle term so that sum of factors =40 and product of factors =400,i.e factors would be 20 and 20 , so you can write equations as \[16 a ^2 +20 a +20 a +25 = 4a (4a +5) + 5 (4a+5)\] =(4a+5)(4a+5) ...this method is also called middle term spilitting

Answer 7

ohhhhhh okay i see ! @akash_809 .. This was actually very helpful .

Answer 8

@Kimberlina thanks no problems