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9 votes
9 votes
Expand expression (3x-7)(2x+7), without using long multiplication find 53×47


User Murakami
by
3.1k points

1 Answer

17 votes
17 votes

Answer:

6x² + 7x - 49

53×47 = 2491

Explanation:

(3x-7)(2x+7)

6x² + 21x - 14x - 49

combine like terms:

6x² + 7x - 49

User Alex Guteniev
by
2.7k points
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