Only if all the variables match up.
Example of when they do match: 3x^2 +2y+r plus x^2- 2r+ 3y
When they don't match: 3x^4+x+y plus 3x^3-x^2 +r
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Never, it will always be negative, regardless the numbers.
No. Double any odd number. The result is even.
People became more aware of how dangerous car and accidents on the road are. In response, the National Traffic and Motor Vehicle Safety Act was passed, adding and modifying road safety laws.
You have the gene of tallness, but you don't eat enough so that your body size doesn't change. Continuous variation in human population is always the result of interaction between genotype and the environment
When you multiply any number by itself, the result is always positive. You cannot take any real number and square it to get something negative. The square root of -36 is 6i.