Advertisements
Advertisements
प्रश्न
Expand (ax + by)2
बेरीज
Advertisements
उत्तर
It is known that (a + b)2 = a2 + 2ab + b2 and (a − b)2 = a2 − 2ab + b2.
(ax + by)2
= (ax)2 + 2 × (ax) × (by) + (by)2
= a2x2 + 2axby + b2y2
= a2x2 + 2abxy + b2y2
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
संबंधित प्रश्न
Use a suitable identity to get the following products.
(− a + c) (− a + c)
Find the following squares by suing the identities.
(b − 7)2
Find the following squares by suing the identities
(xy + 3z)2
Using identities, evaluate 1.05 × 9.5
Expand `("a"/2+"b"/3)^2`
Use an expansion formula to find the value.
(997)2
Use an expansion formula to find the value.
(102)2
Expand: (2x + 3y)2
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
2x3 + 24x2 + 72x
Factorise the following.
y2 + 7y + 12
