[tex] \: \: \: \: \: \: [/tex]
[tex] = 3a ^{4} \times (7 {a}^{5} - 2)[/tex]
Step-by-step explanation:
[tex]21 {a}^{9} - 6 {a}^{4} [/tex]
- factor out 3 a⁴ from the expression
[tex] = 3 {a}^{4} \times (7 {a}^{5} - 2)[/tex]
hope it helps
[tex] \: \: \: \: \: \: [/tex]
