Solve 2x2 − 6x = −8. negative 3 plus or minus 5i all over 2 the quantity of 3 plus or minus 2i square root 30 all over 2 the quantity of 3 plus or minus i square root 30 all over 2 the quantity of 3 plus or minus i square root 7 all over 2

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:

answer: evaluate the objective function at each vertex to determine which - and -values, if any, maximize or minimize the function. example: find the minimum value and maximum value of the objective function f ( x , y ) = 4 x + 5 y , subject to the following constraints