Study guides

Q: What two numbers multiply to 90 and add to 21?

Write your answer...

Submit

Related questions

21

-17

21

57

341

51

The numbers are: -1 and -20

-3367

41

7 & 3

111

1209

If you've written that correctly, there aren't two whole numbers that satisfy those conditions. -20 and -5 add to -25, but multiply to 100. -25 and 4 multiply to -100, but add to -21.

421

99

-21 and 4

21

The numbers are: 21 and -10

-21, 27

21

There are no two real numbers that do, but two complex numbers do: (3.5 + i 3.5 √23) and (3.5 - i 3.5 √23) If you want them to add to 7 and multiply to -294, then the two real numbers -14 and 21 work. Or if you want them to add to -7 and multiply to -294, then the two real numbers 14 and -21 work. To add to -7 and multiply to 294, the following two complex numbers work: (-3.5 + i 3.5 √23) and (-3.5 - i 3.5 √23)

-1

69

141

155