Another way of factoring a trinomial ax2 + bx+c where a # 1 is by grouping method, al known as ac-product. Factoring ax? + bx+c (a + 1) By Grouping 1. 2. 3. 4. Find ac. Find the factors of ac whose sum is b. Rewrite the middle term (bx) as a sum or difference using the factors in Step 2. Factor by grouping.
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