Advertisements
Advertisements
प्रश्न
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
`x^2/4 + 2x + 4`
उत्तर
We have,
`x^2/4 + 2x + 4`
= `(x/2)^2 + 2 * x/2 * 2 + 2^2`
= `(x/2 + 2)^2`
= `(x/2 + 2)(x/2 + 2)`
APPEARS IN
संबंधित प्रश्न
Use a suitable identity to get the following products.
`(3a - 1/2)(3a - 1/2)`
Find the following squares by suing the identities.
`(2/3 m + 3/4 n)^2`
Using identities, evaluate 712
Using identities, evaluate 992
Expand `("a"/2+"b"/3)^2`
Expand (ax + by)2
Use an expansion formula to find the value.
(1005)2
Factorise the following using suitable identity
a2 + 6ab + 9b2 – c2
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
16x2 + 40x + 25
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.
