0
You find two numbers which add to -2 and multiply to -3. These numbers are -3 and 1 so your factors are (x - 3)(x + 1), assuming your expression does in fact represent zero. x is thus either 3 or -1. Check: 32 - (2 * 3) - 3 = 0? yes; -12 - (2 * -1) - 3 = 0? yes. QED
-19
(-1)+(-2)=(-3) (-1)(-2)=2
-13
- 6 - 3 - 4 ÷ - 8 x 2 = -8
x/3 - 7 = 2=> x/3 = 9 (add 7 to both sides) => x = 27 (multiply both sides by 3).
310
5
0
There are no two real numbers that do. Using complex numbers, these two do: (-3/2 + i√151/2) & (-3/2 - i√151/2) Two numbers that add to -3 and multiply to -40 are -8 & 5 Two numbers that add to 3 and multiply to -40 are 8 & -5 Two complex numbers that add to 3 and multiply to 40 are (3/2 + i√151/2) & (3/2 - i√151/2)
The two numbers that add to get -2 and multiply to get 9 are -3 and -3. When you add -3 and -3, you get -6, and when you multiply them, you get 9. This is because -3 + -3 = -6 and -3 * -3 = 9.
-1 and -2
You find two numbers which add to -2 and multiply to -3. These numbers are -3 and 1 so your factors are (x - 3)(x + 1), assuming your expression does in fact represent zero. x is thus either 3 or -1. Check: 32 - (2 * 3) - 3 = 0? yes; -12 - (2 * -1) - 3 = 0? yes. QED
-19
you can multiply 281 and 3 you can add 840 and 3
(-1)+(-2)=(-3) (-1)(-2)=2