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
Simplify (2x +5)2 − (2x − 5)2
Expand `("a"/2+"b"/3)^2`
Expand: (10 + y)2
Use a formula to multiply of (4z – 5y)(4z + 5y)
Evaluate the following, using suitable identity
512
(a + b)2 – 2ab = ______ + ______.
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
x2 + 6x + 9
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
9x2 + 24x + 16
Factorise the following.
p2 + 14p + 13
The area of a square is given by 4x2 + 12xy + 9y2. Find the side of the square.
