It seems that $ -2x^{2}-3x+1 $ cannot be factored out.
Step 1 :
After factoring out $ -1 $ we have:
$$ -2x^{2}-3x+1 = - ~ ( 2x^{2}+3x-1 ) $$Step 2 :
Step 2: Identify constants $ a $ , $ b $ and $ c $.
$ a $ is a number in front of the $ x^2 $ term $ b $ is a number in front of the $ x $ term and $ c $ is a constant. In this case:
Step 3: Multiply the leading coefficient $\color{blue}{ a = 2 }$ by the constant term $\color{blue}{c = -1} $.
$$ a \cdot c = -2 $$Step 4: Find out two numbers that multiply to $ a \cdot c = -2 $ and add to $ b = 3 $.
Step 5: All pairs of numbers with a product of $ -2 $ are:
PRODUCT = -2 | |
-1 2 | 1 -2 |
Step 6: Find out which factor pair sums up to $\color{blue}{ b = 3 }$
Step 7: Because none of these pairs will give us a sum of $ \color{blue}{ 3 }$, we conclude the polynomial cannot be factored.