Advertisements
Advertisements
प्रश्न
Verify the following:
(7p – 13q)2 + 364pq = (7p + 13q)2
Advertisements
उत्तर
Taking L.H.S. = (7p – 13q)2 + 364pq
= (7p)2 + (13q)2 – 2 × 7p × 13q + 364q
= (7p)2 + (13q)2 – 182pq + 364pq
= (7p)2 + (13q)2 + 182pq
= (7p)2 + (13q)2 + 2 × 7p × 13q
= (7p + 13q)2
= R.H.S.
Hence verified.
APPEARS IN
संबंधित प्रश्न
Find the following squares by suing the identities.
`(2/3 m + 3/4 n)^2`
Using identities, evaluate 297 × 303
Using (x + a) (x + b) = x2 + (a + b) x + ab, find 5.1 × 5.2
Using (x + a) (x + b) = x2 + (a + b) x + ab, find 9.7 × 9.8
Use the formula to multiply the following.
(x + y) (x − y)
The difference of the squares of two consecutive numbers is their sum.
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
4x2 + 4x + 1
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
a2x2 + 2abxy + b2y2
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
a2x3 + 2abx2 + b2x
The height of a triangle is x4 + y4 and its base is 14xy. Find the area of the triangle.
