tamara

Choose the correct statement

1. x²-25 is equal to zero if and only if x= 5

2. x²+x⁴-2 is equal to zero if and only if x= 1

3. x⁴-x² is equal to zero if and only if x=0

4. x+3 is equal to zero if and only if x=-3

What is 2 x 2?

Solve for 8x - 3 = 6x - 9