1 .(x+2)² quadratic equation or not

2.(w+7)(w+5) quadratic equation or not

3.¹/⁴(g-6)=0 quadratic equation or not

4.5m-3=10 quadratic equation or not

5.x(x-2)=9 quadratic equation or not

6.-8x²+3x= -102 quadratic equation or not

7.30m-20=12 quadratic equation or not



answer this plss​