Using the numbers 2,0,1,9 in order what exoression do you make to equal 6
1 answer:
Answer:
Step-by-step explanation:
We have given the numbers = 2,0,1,9
We can use addition and subtraction operation to the given numbers such that the answer will be equals to 6.
We can add 2 ,0 and 1 and then subtract from 9 , we will get 6.
So the required expression can be
hence, the required expression can be
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First, notice every term has a common factor of 2, so factor out a 2.
Now we need two numbers that multiply to 5 and two numbers that multiply to -4.
For the 5, it is a single possibility, 5 and 1, so we will have
Pairs of numbers that multiply to -4 are:
-4, 1
4, -1
2, -2
We need to choose the correct pair and place it in the correct order.
To do that, we place the numbers as guesses and multiply out the factors to see if we get the correct middle term.
First guess: -4, 1
The middle term would be: 5x - 4x = x, which is what we want, so we lucked out and we have the answer with just one guess.
Answer:
Now we need two numbers that multiply to 5 and two numbers that multiply to -4.
For the 5, it is a single possibility, 5 and 1, so we will have
Pairs of numbers that multiply to -4 are:
-4, 1
4, -1
2, -2
We need to choose the correct pair and place it in the correct order.
To do that, we place the numbers as guesses and multiply out the factors to see if we get the correct middle term.
First guess: -4, 1
The middle term would be: 5x - 4x = x, which is what we want, so we lucked out and we have the answer with just one guess.
Answer: