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How do you know that x^{2}-10x=8 is a quadratic equation?

ManuelBautista2019
Feb 28, 2018

#1**+2 **

Because it is of the form ax^2 + bx +c = 0

Re-arranging your equation:

x^2-10x-8 = 0 a=1 b = -10 c = -8

ElectricPavlov
Feb 28, 2018

#2

#3**+2 **

No...'c' could be 0

Because it is of the form ax^2 + bx +c = 0

all it needs is to be degree 2 (one term is squared) , as in x^2

ElectricPavlov
Feb 28, 2018