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(2x+3)^2-3(x-1)(x + 2)​
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1 vote
(2x+3)^2-3(x-1)(x + 2)​

User ASSILI Taher
by
6.9k points

1 Answer

2 votes

Answer:

x² + 9x + 15

Explanation:

Given

(2x + 3)² - 3(x - 1)(x + 2) ← expand factors using FOIL

= 4x² + 12x + 9 - 3(x² + x - 2) ← distribute

= 4x² + 12x + 9 - 3x² - 3x + 6 ← collect like terms

= x² + 9x + 15

User Tales
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7.2k points
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