SOLUTION: Find two numbers..... 1. Whose sum is 2 and whose product is -63__________ 2. Whose sum is -2 and whose product is -80__________ 3. Whose sum is 4 and whose product is -60

SOLUTION: Find two numbers..... 1. Whose sum is 2 and whose product is -63 2. Whose sum is -2 and whose product is -80 3. Whose sum is 4 and whose product is -60

Question 51009: Find two numbers.....
1. Whose sum is 2 and whose product is -63__________
2. Whose sum is -2 and whose product is -80__________
3. Whose sum is 4 and whose product is -60__________
4. Whose sum is -11 and whose product is 28__________
Answer by checkley71(8403) (Show Source): You can put this solution on YOUR website!
X+Y=2 & X*Y=-63 OR X=2-Y THEN (2-Y)Y=-63 OR 2Y-Y^2=-63 OR Y^2-2Y-63 OR
(Y-9)(Y+7)=0 THEN Y=9 & Y=-7 THEN X=-7 & X=9
X+Y=-2 & X*Y=-80 OR X=-2-Y THEN (-2-Y)Y=-80 OR -2Y-Y^2=-80 OR Y^2+2Y-80=0 OR
(Y+10)(Y-8)=0 OR Y=-10 & Y=8 THEN X=8 & X=-10
X+Y=4 & X*Y=-60 OR X=4-Y THEN (4-Y)Y=-60 OR 4Y-Y^2=-60 OR Y^2-4Y-60=0 OR
(Y-10)(Y+6)=0 OR Y=10 & Y=-6 THEN X=-6 & X=10
X+Y=11 & X*Y=28 OR X=11-Y THEN (11-Y)Y=28 OR 11Y-Y^2=28 OR Y^2-11+28=0 OR
(Y-7)(Y-4)=0 OR Y=7 & Y=4 THEN X=4 & X=7
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