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is 3x^2(x+4)=0 a quadratic equation? Explain.

Sagot :

Answer:

No.

Step-by-step explanation:

The equation

[tex]3 {x}^{2} (x + 4) = 0[/tex]

is a cubic equation because, if we distribute 3x² over the parenthesis, we would have

[tex]3 {x}^{3} + 12 {x}^{2} = 0[/tex]

Since quadratic equations have 2 as the highest exponent, 3x³ + 12x² = 0 is NOT quadratic.