Advertisements
Advertisements
प्रश्न
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
4x2 + 4x + 1
Advertisements
उत्तर
We have,
4x2 + 4x + 1
= (2x)2 + 2 × 2x × 1 + 12
= (2x + 1)2
= (2x + 1)(2x + 1)
APPEARS IN
संबंधित प्रश्न
Find the following squares by suing the identities.
`(2/3 m + 3/4 n)^2`
Simplify (m2 − n2m)2 + 2m3n2
Use the formula to multiply the following.
(3x − 5) (3x + 5)
Use a formula to multiply of (4z – 5y)(4z + 5y)
Factorise the following using suitable identity
a2 + 6ab + 9b2 – c2
Factorise the following.
x2 + 9x + 20
Factorise the following.
y2 + 7y + 12
If a + b = 25 and a2 + b2 = 225, then find ab.
Verify the following:
(5x + 8)2 – 160x = (5x – 8)2
Take suitable number of cards given in the adjoining diagram [G(x × x) representing x2, R(x × 1) representing x and Y(1 × 1) representing 1] to factorise the following expressions, by arranging the cards in the form of rectangles:
- 2x2 + 6x + 4
- x2 + 4x + 4.
Factorise 2x2 + 6x + 4 by using the figure.
Calculate the area of figure.
