1.

Solve the following21a²-14a²+42 by 7a²​

Answer»

Answer:

The greatest common factor of the TERMS 28a², 14a²b² and 21a⁴ of the expression

28a² + 14a²b² – 21a⁴ is 7a².

Also, we can WRITE 28a² = 7a². 4, 14a²b² = 7a² . 2b² and 21a⁴ = 7a² . 3a².

Therefore, 28a² + 14a²b² – 21a⁴ = 7a². 4 + 7a² . 2b² – 7a² . 3a²

= 7a² (4 + 2b² – 3a²)

HOPE it will help you



Discussion

No Comment Found

Related InterviewSolutions