-7x2 - 21x = 0 x2 - 49 = 0 M20-2 Lesson 3 Solving Equations Questions Key Group 1 Group 6 2, 4 3, -5 1.5, 0.5 -1, 2.5 0, -5 0, 7 +6, -6 +3, -3 Group 2 Group 7 3, -2 -4, -8 - 8, 0.25 3, -1.5 0, 11 0, -9 +2, -2 +11, -11 Group 3 Group 8 -6, 2 10, -18 -3, 0.75 2/3, 1 0, 2 0, 7 +12, -12 +10, -10 Group 4 Group 9 -7, 3 2, 1 -4, 1.5 1/3, 2 0, 5 0, 2 +5, -5 +1, -1 Group 5 -1 -0.5, 6 0, -3 +7, -7
-7x2 - 21x = 0 x2 - 49 = 0 M20-2 Lesson 3 Solving Equations Questions Key Group 1 2, 4 1.5, 0.5 0, -5 +6, -6 Group 6 3, -5 -1, 2.5 0, 7 +3, -3 Group 2 3, -2 - 8, 0.25 0, 11 +2, -2 Group 7 -4, -8 3, -1.5 0, -9 +11, -11 Group 3 -6, 2 -3, 0.75 0, 2 +12, -12 Group 8 10, -18 2/3, 1 0, 7 +10, -10 Group 4 -7, 3 -4, 1.5 0, 5 +5, -5 Group 9 2, 1 1/3, 2 0, 2 +1, -1 Group 5 -1 -0.5, 6 0, -3 +7, -7