Answer:

Step-by-step explanation:
So what we should do is first expand. What I did was I did it one step at a time, starting with (2x+5)(2x+5). This gave me
. I then continued to do this, until I got
. Then you asked me what this would be subtracted from 1. So, what I did was set it so that it would follow this rule, making it
.
After this, I just simplified.
500-120= 380 380÷200= 19 so the answer is 19
-1/2p²+1900²=0
-0.5p²+1900p=0
p²-3800p=0
p(p-3800)=0
p₁=0
p-3800=0
p₂ = 3800
answer: 0 and 3800
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Step-by-step explanation:
hope this helps
Answer:
Step-by-step explanation:
A number increased by 7