7
7.5516 and 70.4484 (approx)
The two numbers that have a product of -2 and a sum of -1 are 1 and -2. When multiplied, 1 × -2 equals -2, and when added, 1 + (-2) equals -1.
The numbers are: 6+2*sq rt of 6 and 6-2*sq rt of 6.
The two numbers that have a product of -26 and a sum of -11 are -13 and 2. When multiplied, -13 × 2 equals -26, and when added, -13 + 2 equals -11.
2+21=23 2*21=42 (* is another symbol for multiply)
7.5516 and 70.4484 (approx)
-125
8, 5 and 2
The two numbers that have a product of -2 and a sum of -1 are 1 and -2. When multiplied, 1 × -2 equals -2, and when added, 1 + (-2) equals -1.
The numbers are: 6+2*sq rt of 6 and 6-2*sq rt of 6.
-2
(9 - √89)/2 ≈ -0.217 and (9 + √89)/2 ≈ 9.217
2+21=23 2*21=42 (* is another symbol for multiply)
-15
The two numbers that multiply to 6 and add to 5 are 2 and 3. When multiplied, 2 x 3 equals 6, and when added, 2 + 3 equals 5.
The numbers that multiply to -24 and add to -10 are -12 and 2. When multiplied, -12 × 2 equals -24, and when added, -12 + 2 equals -10.
The two numbers that multiply to give -20 and sum to -8 are -10 and 2. When multiplied, -10 × 2 equals -20, and when added, -10 + 2 equals -8.