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5b2-10b-15 factor this

5b2-10b-15 factor this
asked 178k views
4 votes
5b2-10b-15 factor this

asked
User CrazyC
by
8.6k points

1 Answer

5 votes

Answer:

5(b - 3)(b + 1)

Explanation:

take out a common factor of 5

= 5(b² - 2b - 3)

to factor the quadratic consider the factors of - 3 which sum to - 2

These are - 3 and + 1, thus

= 5(b - 3)(b + 1)


answered
User MHD Alaa Alhaj
by
8.8k points
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