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Transcript
Product of the Roots: ( x1 )( x 2 ) = ( ( ) ( ) ) = 28 28 = 28 )= )( ( c a )+( Problems - Use the sum and product of the roots to check the previously solved equations: 6. 6n2 - 5n - 25 = 0 (See warm-up 1(c) in this section.) Solution Set = ï¬ïï® 156 , - 53 ï¼ï½ï¾ 7. x2 + 2x = 2 (See warm-up 1(a) in this section.) Solution Set = - 1 + 3 , - 1 - 3 ï» ï½ Worksheet 42 (7.5) 7.5 More Quadratic Equations and Applications Key Factors to Consider when Solving Quadratic Equations Summary 1: 169
