Advertisements
Advertisements
Question
विस्तार करा.
(a + 2) (a − 1)
Sum
Solution
(x + a) (x + b) = x2 + (a + b) x + ab
(a + 2) (a − 1) = (a)2 + {2 + (−1)} a + (2) × (−1)
= a2 + (2 − 1) a + (−2)
= a2 + 1a − 2
= a2 + a − 2
shaalaa.com
Is there an error in this question or solution?
