Find (a^4+b^4+c^4)

*a, b,c are real numbers*

What signals you that factoring by grouping is the best method to use when factoring a problem?

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.

Which strategy is used by public health to reduce the incidence of food poisoning?