Advertisements
Advertisements
प्रश्न
Use a suitable identity to get the following products.
(2y + 5) (2y + 5)
Advertisements
उत्तर
The product will be as follow
(2y + 5) (2y + 5) = (2y + 5)2
= (2y)2 + 2(2y) (5) + (5)2 [(a + b)2 = a2 + 2ab + b2]
= 4y2 + 20y + 25
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
संबंधित प्रश्न
Use a suitable identity to get the following products.
(6x − 7) (6x + 7)
Find the following squares by suing the identities.
(b − 7)2
Simplify (7m − 8n)2 + (7m + 8n)2
Simplify (m2 − n2m)2 + 2m3n2
Using (x + a) (x + b) = x2 + (a + b) x + ab, find 103 × 98
Expand `("a"/2+"b"/3)^2`
Use an expansion formula to find the value.
(997)2
Expand:
(10 + y)2
Use a formula to multiply of (4z – 5y)(4z + 5y)
Factorise the following using suitable identity
a2 + 6ab + 9b2 – c2
