3. Section 2.3
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Let's determine xy and x+y by substituting these values into the expressions. xy:& 5( -3)=-15 x+y:& 5+( -3)=2 Now we can complete our diamond!
-14=-2( 7) -14= 2(-7) To determine which pair of integers is correct, we have to check which one sums to-5. -2 +7 &= 5 & * 2+(-7)&=-5 & ✓ As we can see, the values of x and y are 2 and -7. Now we can complete our diamond!