1. What 3 things must be true for a binomial to be a difference of squares?

2. How do you determine the square root of a term whose variable(s) have exponents greater than 2?

3. Is this a difference of squares? Show your work and explain. 64v4 − 225w10

use substitution to solve each system of equations. y = x + 5 3x + y = 25 62/87,21 y = x + 5 3x + y = 25 substitute x + 5 for y in the second equation. substitute the solution for x into either equation to find y. the solution is (5, 10)

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