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1. 2. 3. x. =. =. =. =. 4. 5. 6. x. =. x. x. x. 7. 8. 9. x. =. 8-4: Factor Trinomials : Ax 2 + Bx + C. Place Ax 2 in box 1, C in box 2 , and multiply them together to get box 3 Fill in box 6 and box 9… a) they must multiply to get box 3, and
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1 2 3 x = = = = 4 5 6 x = x x x 7 8 9 x = 8-4: Factor Trinomials : Ax2 + Bx + C • Place Ax2in box 1, C in box 2, and multiply them together to get box 3 • Fill in box 6 and box 9… • a) they must multiply to get box 3, and • b) add to get Bx • 3) Fill in box 4 and box 7… • a) they must multiply to get box 1, and • b) box 4 a factor of box 6, and box 7 a factor of box 9 • Fill in box 5 and box 8… • a) they must multiply to get box 2, and • b) box 4 times box 5 = box 6 • box 7 times box 8 = box 9 • 5) The sum of box 4 and box 8, and the sum of box 7 and box 5 are the factors. • ANSWER • (box 4 + box 8 )(box 7 + box 5) 6x2 – 11x + 3 18x2 6x2 3 3x -3 -9x -2x 2x -1 (3x – 1)(2x – 3)