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Keith_Richards [23]
3 years ago
9

20 points and brainliest to the best correct answer, only number 14, thanks.​

Mathematics
2 answers:
SSSSS [86.1K]3 years ago
7 0

Answer:

9x^2+45x+12

Step-by-step explanation:

((15+9x)(5))+((x^2-7)(9)); (75+45x)+(9x^2-63); 75+45x+9x^2-63; 9x^2+45x+12

PSYCHO15rus [73]3 years ago
6 0

Answer:9g+5h

Step-by-step explanation:

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