Question

1. x² - 4=
2. 36m²-100n²=
3. x²y²-4/9=(/-дробная черта)
4. 0,01с²-d⁸=
5. -1+49a⁴b⁸=
6. (3b-5)²-49=
7. a⁴-(a-7)²=​

Answer 1

Ответ:

1.х^2-4=х^2-2^2=(х-2)(х+2)

2.36m^2-100m^2=4(9m^2-25n^2) =4(3m-5n)(3m+5n)