We can set up a system of equations:
x + y = 12
x - y = 4
Adding these two together:
2x = 16
x = 8
Substituting 8 in the first equation:
8 + y = 12
y = 4
Hope this helps!
Step-by-step explanation:
what is the question. what am I to do with those random numbers without a question, I'm just writing all this because they said at least 20 characters so don't get offended but pls give a detailed question
Answer:
brainlist plzz
Step-by-step explanation:
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Answer:
Step-by-step explanation:
(2x+1)^2+(2x^2+2x)^2=
(2x+1)^2=4x^2+4x+1
(2x^2+2x)^2=4x^4+8x^3+4x^2
4x^2+4x+1+4x^4+8x^3+4x^2=4x^4+8x^3+8x^2+4x+1
(2x^2+2x+1)^2=4x^4+8x^3+8x^2+4x+1
4x^4+8x^3+8x^2+4x+1=4x^4+8x^3+8x^2+4x+1
