For the given expression, use the commutative property of multiplication to enter an equivalent expression. a b =

Step-by-step explanation:

I can't do much more than just give you the answer.

The commutative property of multiplication is turning a and b around.

commutative(a*b) = b*a

b * a

your answer is a

step-by-step explanation:

4*4*4*4=256

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225