Объяснение:
1) (х+4)(а+3)
2) (m+2)(2x-3)
3) (9m-5)(m²-n²)
4) (c-2a)(b²-9a²)
5) (3+z²)(7+z)
6) (z-3)(z²+2)
7) (x²+2)(x-3)
8) (2b²+3)(b-2)
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Объяснение:
1) (х+4)(а+3)
2) (m+2)(2x-3)
3) (9m-5)(m²-n²)
4) (c-2a)(b²-9a²)
5) (3+z²)(7+z)
6) (z-3)(z²+2)
7) (x²+2)(x-3)
8) (2b²+3)(b-2)