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Factorize 15x^2+7x+2 |
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Answer» Step-by-step EXPLANATION:Explanation: Given: 15 X 2+ 7 x − 2 Use an AC METHOD: Find a pair of factors of A C = 15 ⋅ 2 = 30 which differ by B = 7 . The pair 10 , 3 works. Use this pair to split the middle term then FACTOR by grouping as follows: 15 x 2 + 7 x − 2 = 15 x 2 + 10 x − 3x − 2 = ( 15 x 2 + 10 x ) − ( 3 x + 2 ) = 5 x ( 3 x + 2 ) − 1 ( 3 x − 2 ) = ( 5 x − 1 ) ( 3 x +2 ) |
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