The answer is... 3 - Because... 2 - 2 = 0... 0 x 3 = 0.... 0 + 3 = 3
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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
310
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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)
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
(-1)+(-2)=(-3) (-1)(-2)=2
-13
-5 and +3
Divide 4 by 2, then multiply by 3 and then add 4
First you multiply 4 and 9, which you get 36 then you add the 3, which makes 39 and then subtract 6... leaving you with an answer of 33. :)
-30 and 3
-7
* Turn it upside down. * Divide by 2, then multiply by 3. * Add 3.