Advertisements
Advertisements
प्रश्न
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
a2x2 + 2abxy + b2y2
Advertisements
उत्तर
We have,
a2x2 + 2abxy + b2y2
= (ax)2 + 2 × ax × by + (by)2
= (ax + by)2
= (ax + by)(ax + by)
APPEARS IN
संबंधित प्रश्न
Using identities, evaluate 712
Use the formula to find the value.
502 × 498
Use the formula to find the value.
54 × 46
Use the formula to find the value.
98 × 102
(x2 + y2)(y2 + x2) = (x2 + y2)2
The difference of the squares of two consecutive numbers is their sum.
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
x2 + 6x + 9
Verify the following:
(a + b)(a + b)(a + b) = a3 + 3a2b + 3ab2 + b3
Verify the following:
(7p – 13q)2 + 364pq = (7p + 13q)2
Find the length of the side of the given square if area of the square is 625 square units and then find the value of x.
