Test: Quadratic Functions III - Normal

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Question 1:   Write the equation   2x1 2 = x1 x+1   in a standard form   x 2 +bx+c=0
x 2 8 3 x+ 2 3 =0
x 2 4x+2=0
x 2 4 3 x+ 2 3 =0
x 2 4 3 x+2=0
Question 2:   Are   x=4,x=8   square roots of the quadratic equation   x 2 3x4=0
x4,х=8
x=4,х8
x4,х8
x=4,х=8
Question 3:   Solve the equation   7 x 2 63=0
x=±7
x=0,x=3
x=0,x=3
x=±3
Question 4:   Solve the equation   x 2 +5x=0
x=0,x=5
x=±5
x=0,x=5
x=0
Question 5:   Solve the equation   x 2 +5x4=0
x=3,x=5
x 1,2 = 5± 13 2
x 1,2 = 5± 13 2
x=3,x=5
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