Which of the equations are true identities? A. (5b- 2)^2+ 4 = 25b^2– 20b
B. (2x² + y^2)(2x² - y2) = 4x^2– y
Choose 1

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

Math each whole number with a rational,exponential expression

Shelly bought a house five years ago for $150,000 and obtained an 80% loan. now the home is worth $140,000 and her loan balance has been reduced by $12,000. what is shelly's current equity?