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
संबंधित प्रश्न
Use a suitable identity to get the following products.
(x + 3) (x + 3)
Use the formula to multiply the following.
(3x − 5) (3x + 5)
Use the formula to multiply the following.
(a + 6) (a − 6)
Use the formula to find the value.
54 × 46
Use a formula to multiply of (4z – 5y)(4z + 5y)
Use a formula to multiply of (2t – 5)(2t + 5)
Factorise the following using suitable identity
36m2 + 60m + 25
Factorise the following.
x2 + 9x + 20
The area of a square is 9x2 + 24xy + 16y2. Find the side of the square.
What should be added to 4c(– a + b + c) to obtain 3a(a + b + c) – 2b(a – b + c)?
