Question: Guided Practice When factoring ar + bx + c, the coefficient b is the sum of 2. The factor pairs can be used to factor

Guided Practice When factoring ar + bx + c, the coefficient b is the sum of 2. The factor pairs can be used to factor by grouping. factors of the product of a and c. Complete the steps for factoring by grouping for each trinomial. 1. In both 8.x - 19x - 15 and &x2 - 2x - 15, the product of a and c is - 120. 8x3 - 19x - 15 8.x2 -- 2x - 15 a. List all the pairs of factors for -120. 8.x2 - 24x + 5x - 15 8x2 - 12x + 10x - 15 - 24.5 BX (x - - )+ 5 (x - 4 x ( 2x - _ -) + 5(2x - - 12. 10 Circle the factor pair for -120 that adds to the sum Factoring by grouping is helpful when factoring trinomials of of - 19. the form ax? + bx + c, where the value of a has multiple factors. 3. Factor 6x2 - 19x + 15 by grouping. Draw a rectangle around the factor pair for -120 that adds to the sum of -2

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