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soldier1979 [14.2K]
3 years ago
15

Select all of the following that are quadratic equations.​

Mathematics
2 answers:
Nesterboy [21]3 years ago
5 0

Answer:

x^2 -2x = 4x+1

2x^2 +12x = 0

9x^2 +6x -3=0

Step-by-step explanation:

A quadratic equation has the highest power of x being squared

x^2 -2x = 4x+1

2x^2 +12x = 0

9x^2 +6x -3=0

These are all quadratic equations

avanturin [10]3 years ago
5 0

Answer:

a,d,f

Step-by-step explanation:

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Step-by-step explanation:

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