Question

want to be brainlist, do it 7 and 8​

Answer 1

Answer:

7)YES

8)YES

Step-by-step explanation:

HOPE IT HELPS U

Answer 2

Step-by-step explanation:

7) x²+2=x³ [ by taking lcm]

=>x³-x²-2=0

so, it is not a quadratic equation.

8) x⁴-1=5x²

=>x⁴-5x²-1=0

so, it is not a quadratic equation.