True of false with similar triangles the corresponding angels are equal

What is the prime factorization of 230

Which is greater, 7 p 5 or 7 c 5? 7p5 7c5

Simplify (4x^2 - 8xy + 2y^2) - (9x^2 - 4xy - 7y^2) a. -5x^2 + 4xy + 9y^2 b. -5x^2 - 4xy + 9y^2 c. -5x^2 + 12xy + 4y^2 d. -5x^2 - 4xy - 5y^2