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Lesson 9.5 - Solving Quadratics by using the Quadratic Formula

Terms in this set (26)

{-7, 7}
Solve by using the Quadratic Formula. Round to the nearest tenth if necessary: x²-49=0
{-4, 5}
Solve by using the Quadratic Formula. Round to the nearest tenth if necessary: x²-x-20=0
{-4, 9}
Solve by using the Quadratic Formula. Round to the nearest tenth if necessary: x²-5x-36=0
{-6, -5}
Solve by using the Quadratic Formula. Round to the nearest tenth if necessary: x²+11x+30=0
{0.5, 6.5}
Solve by using the Quadratic Formula. Round to the nearest tenth if necessary: x²-7x=-3
{-3.7, -0.3}
Solve by using the Quadratic Formula. Round to the nearest tenth if necessary: x²+4x=-1
no real solutions
Solve by using the Quadratic Formula. Round to the nearest tenth if necessary: x²-9x+22=0
{-5.4, -0.6}
Solve by using the Quadratic Formula. Round to the nearest tenth if necessary: x²+6x+3=0
{-3½, 1}
Solve by using the Quadratic Formula. Round to the nearest tenth if necessary 2x²+5x-7=0
{½, 1}
Solve by using the Quadratic Formula. Round to the nearest tenth if necessary: 2x²-3x=-1
∅
Solve by using the Quadratic Formula. Round to the nearest tenth if necessary: 2x²+5x+4=0
{-4½, 1}
Solve by using the Quadratic Formula. Round to the nearest tenth if necessary: 2x²+7x=9
{-1.4, 0.7}
Solve by using the Quadratic Formula. Round to the nearest tenth if necessary: 3x²+2x-3=0
{-2/3, 3}
Solve by using the Quadratic Formula. Round to the nearest tenth if necessary: 3x²-7x-6=0
4
Find the discriminant for x²+4x+3=0
0
Find the discriminant for x²+2x+1=0
-24
Find the discriminant for x²-4x+10=0
8
Find the discriminant for x²-6x+7=0
32
Find the discriminant for x²-2x-7=0
89
Find the discriminant for 2x²+5x-8=0
-60
Find the discriminant for 2x²+6x+12=0
-64
Find the discriminant 2x²-4x+10=0
13
Find the discriminant for 3x²+7x+3=0
2 real solutions
Determine the number of real solutions for a quadratic with discriminant of 4
1 real solution
Determine the number of real solutions for a quadratic with discriminant of 0
no real solutions
Determine the number of real solutions for a quadratic with discriminant of -64
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