Question

Which of the following is not a quadratic equation
a) x2+3x-5=0
b) x2 +3x+=0
c) x2 - 9=0​

Answer 1

Answer:

b) is not a quadratic equation

Answer 2

Step-by-step explanation:

x2+3x+5=0 because

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3 5

5+1 5×1

that is impossible and it is not a quadratic equation