simplify the following algebraic expressions: 7a²+6ab +9b²-25ab – 8b² +2a² – 5ab About the author Luna
Answer: [tex]7a {}^{2} + 6ab + 9b {}^{2} – 25ab – 8b { }^{2} + 2a {}^{2} – 5ab \\ = 7a {}^{2} + 2a {}^{2} + 6ab – 25ab – 5ab + 9b {}^{2} – 8 b {}^{2} \\ = 9a {}^{2} + 6 ab – 30ab + b {}^{2} \\ = 9a {}^{2} – 24ab + b {}^{2} [/tex] Reply
Answer:
[tex]7a {}^{2} + 6ab + 9b {}^{2} – 25ab – 8b { }^{2} + 2a {}^{2} – 5ab \\ = 7a {}^{2} + 2a {}^{2} + 6ab – 25ab – 5ab + 9b {}^{2} – 8 b {}^{2} \\ = 9a {}^{2} + 6 ab – 30ab + b {}^{2} \\ = 9a {}^{2} – 24ab + b {}^{2} [/tex]