Advertisements
Advertisements
प्रश्न
Simplify:
(ab – c)2 + 2abc
सोपे रूप द्या
Advertisements
उत्तर
We have,
(ab – c)2 + 2abc = (ab)2 + c2 – 2abc + 2abc ...[Using the identity, (a – b)2 = a2 + b2 – 2ab]
= a2b2 + c2
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 7: Algebraic Expression, Identities and Factorisation - Exercise [पृष्ठ २३१]
APPEARS IN
संबंधित प्रश्न
Show that (a - b)(a + b) + (b - c) (b + c) + (c - a) (c + a) = 0
If 2x + 3y = 14 and 2x − 3y = 2, find the value of xy.
[Hint: Use (2x + 3y)2 − (2x − 3y)2 = 24xy]
Find the following product: (3x + 5) (3x + 11)
Find the following product: (3x2 − 4xy) (3x2 − 3xy)
Simplify: (2a + 3b + 4c) (4a2 + 9b2 + 16c2 – 6ab – 12bc – 8ca)
By using identity evaluate the following:
`1 + 1/8 - 27/8`
Simplify:
(1.5p + 1.2q)2 – (1.5p – 1.2q)2
Simplify:
(x2 – 4) + (x2 + 4) + 16
Simplify:
(b2 – 49)(b + 7) + 343
Using suitable identities, evaluate the following.
(103)2
