Using the order of operation which should be done first to evaluate 6+(-5-7)/2-8(3)?

Based on the figures as marked, /\rqs = —

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?