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
(2a − 7) (2a − 7)
Using identities, evaluate 992
Using identities, evaluate 8.92
Using (x + a) (x + b) = x2 + (a + b) x + ab, find 5.1 × 5.2
Use a formula to multiply of (2t – 5)(2t + 5)
Expand the following square, using suitable identities
(2x + 5)2
If a + b = 5 and a2 + b2 = 13, then ab = ?
The height of a triangle is x4 + y4 and its base is 14xy. Find the area of the triangle.
The cost of a chocolate is Rs (x + y) and Rohit bought (x + y) chocolates. Find the total amount paid by him in terms of x. If x = 10, find the amount paid by him.
