Verified answer

4.

[tex]27a^{7}b^{2}-45a^{5}b^{10}=9a^{5}b^{2}(3a^{2}-5b^{8})[/tex]

5.

[tex]36x^{2} -25y^{4}=(6x-5y^{2})(6x+5y^{2})[/tex]

6.

[tex]9x^{4}-24x^{2}y+16y^{2}=(3x^{2} -4y)^{2}[/tex]

Ответ:

4.

(3а²—5b⁸)

5.

(6x—5y²)(6x+5y²)

6.

9x⁴—24²y+16y²=(3x²-4y) ²