If 3+√73−√7= a + b √7, find a and b.

So a=(3+) , b= -1

Step-by-step explanation:

a+b=(3+)-()

we can re-write this as

a=(3+)

b=-1

true statements:

a) x + y = y + x   ⇒ commutative property of addition

b) (x * y) * z = x * (y * z) ⇒ associative property of multiplication

d) (x + y) + z = x + (y + z) ⇒ associative property of addition

false statements:

c) x - y = y - x   should be: x - y = - y + x

e) (x - y) - z = x - (y - z) should be: (x - y) - z = x - (y + z)

step-by-step explanation: