Prove that 3(x+1)(x+7)-2x+5)^2 is never positive
1 answer:
Answer:
Yes, 3(x+1)(x+7)-(2x+5)² is never positive
Step-by-step explanation:
So....
3(x+1)(x+7)-(2x+5)(2x+5)
=3(x²+8x+7)-(4x²+20x+25)
=3x²+24x+21-4x²-20x-25
=-x²+4x-4
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The answer is 31.4 just do 3.14 times 5 times 2
rationalizing the numerator, or namely, "getting rid of that pesky radical at the top".
we simply multiply top and bottom by a value that will take out the radicand in the numerator.
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Answer:
5)216
6)18
7)5
8)-11
Step-by-step explanation:
love the pfp
Wow good job lol- umm get into it I guess
The answer must be 2.333333333 × 10^5
