Advertisements
Advertisements
प्रश्न
Simplify:
`(3/4x - 4/3y)^2 + 2xy`
सरल रूप दीजिए
Advertisements
उत्तर
We have,
`(3/4x - 4/3y)^2 + 2xy = (3/4x)^2 + (4/3y)^2 - 2 xx 3/4x xx 4/3y + 2xy` ...[Using the identity, (a – b)2 = a2 + b2 – 2ab]
= `9/16x^2 + 16/9y^2 - 2xy + 2xy`
= `9/16x^2 + 16/9y^2`
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 7: Algebraic Expression, Identities and Factorisation - Exercise [पृष्ठ २३१]
APPEARS IN
संबंधित प्रश्न
Simplify the following using the identities: 178 × 178 − 22 × 22
Simplify the following using the identities: \[\frac{198 \times 198 - 102 \times 102}{96}\]
Find the following product: (x − 3) ( x − 2)
Find the following product: (y2 − 4) (y2 − 3)
Evaluate the following: 53 × 55
Multiply the following:
(2x – 2y – 3), (x + y + 5)
Simplify:
(a – b) (a2 + b2 + ab) – (a + b) (a2 + b2 – ab)
Simplify:
(pq – qr)2 + 4pq2r
Using suitable identities, evaluate the following.
(98)2
Using suitable identities, evaluate the following.
(995)2
