Advertisements
Advertisements
प्रश्न
Expand: `("p"/3 + "q"/4)^2`
उत्तर
`("p"/3 + "q"/4)^2`
Using the identity (a + b)2 = a2 + 2ab + b2
= `("p"/3)^2 + 2 xx "p"/3 xx "q"/4 + ("q"/4)^2`
`= "p"^2/9 + "pq"/6 + "q"^2/16`
APPEARS IN
संबंधित प्रश्न
Use a suitable identity to get the following products.
(x + 3) (x + 3)
Find the following squares by suing the identities
(xy + 3z)2
Using a2 − b2 = (a + b) (a − b), find 12.12 − 7.92
Use an expansion formula to find the value.
(97)2
Use the formula to multiply the following.
`("x"/5+6)("x"/5-6)`
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
x2 + 12x + 36
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
9x2 + 24x + 16
Factorise the following.
18 + 11x + x2
Verify the following:
(a + b)(a + b)(a + b) = a3 + 3a2b + 3ab2 + b3
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: x2 + 4x + 4. Factorise 2x2 + 6x + 4 by using the figure.
Calculate the area of figure.
