Question

-3z2+5z+7 is quadratic equation or not?​

Answer 1

Answer:

yes

Step-by-step explanation:

-3z²+5z+7 is a quadratic equations

because in quadratic equations highest power of variable is 2 and -3z²+5z+7 has highest power as 2

Answer 2

Answer:

no this is not a quadratic equation

Step-by-step explanation:

because linear equation have power 1 and linear equation in 2 variable have power 2 and variable are different not same jusk like this equation have "z"have same variable so..this is not a linear equation