Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa

4.(iv) Factorise :

  (iv)    3x^2 - x - 4

Answers (1)

best_answer

Given polynomial is   3x^2 - x - 4

We need to factorise the middle term into two terms such that their product is equal to 3 \times -4 =-12 and their sum is equal to -1

We can solve it as 

\Rightarrow 3x^2 - x - 4

\Rightarrow 3x^2 -4 x+3x - 4                                      (\because 3 \times -4 = -12 \ \ and \ \ 3+(-4) = -1)

\Rightarrow x(3x-4)+1(3x-4)

\Rightarrow (x+1)(3x-4)                             

Posted by

Gautam harsolia

View full answer

Similar Questions

Trending Articles/News

anam-khan

CBSE opens post-result facilities for Class 10 main, 2nd exams 2026; apply for scanned copies by August 9
anam-khan

CBSE, NCERT hold joint workshop on Class 9 maths, science textbooks
anam-khan

Supreme court asks centre not to introduce third language in class 9 under CBSE curriculum

Latest Question