Answer:
-1
Step-by-step explanation:
3 • 7 = 21
Find two factors of 21 whose sum equals the coefficient of the middle term, which is -1 .
-21 + -1 = -22
-1 + -21 = -22
1 + 21 = 22
21 + 1 = 22
Answer:
Can not be factorized further
Step-by-step explanation:
Here we are asked to factorize the expression [tex]3x^2+x+7[/tex]
In order to factorize a quadratic polynomial , we have to follow the following steps.
step 1. We have to find the product of coefficient of [tex]x^2[/tex] and the constant term. In this case the coefficient of [tex]x^2[/tex] is 3 and constant term is 7. Hence the product is 3*7=21
Step 2: Now we have to find all the possible factors of this product. In our case the factors will be
21=1*21
21=3*7
Step 3: We have to select one pair of those factors such that their sum or difference is equal to the coefficient of middle term that is [tex]x[/tex] . In this case it is 1. And we can see that in our polynomial , none of the pair gives you 1 either as sum or difference.
As there does not exist any such pair , it can not be further factorize.
