2a^2+4a+1 is equivalent to 4a+4/2a*a^2/a+1
Try this solution (see the attachment).
If it is possible check the suggested solution in the alternative sources.
I think the third (and last) answer is correct, because it would successfully eliminate the x variable when adding downwards. If you want me to explain in more detail feel free to ask :)
Answer:
37.5
Step-by-step explanation:
so x% of 40 is 15
the equation for that is
x/100 * 40 = 15
40x/100 = 15
multiply 100 on both sides
40x = 1500
divide 40 on both sides
37.5
37.5% of 40 is 15
Answer:
76%
Step-by-step explanation:
76 out of 100 is equal to 76%. This is the answer