Solving Quadratic Equations

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Questions Responses

Factoring

Square Root

Quadratic Formula

100

x²+11x+30=0

x=-6 x=-5

100

x²-7=9

x=-4 x=4

100

n²-11n-42=0

n=-3 n=14

200

b²-6b+5=0

b=1 b=5

200

x²+1=5

x=-2 x=2

200

3x²+2x-65=0

x=13/3 x=-5

300

x²-2x-15=0

x=5 x=-3

300

5v²-1=79

v=-4 v=4

300

4r²+3r-1=0

r=1/4 r=-1

400

r²-8r+16=0

r=4

400

8k²+4=68

k=-4 k=4

400

2k²-8k+8=0

k=2