Advertisements
Advertisements
प्रश्न
Factorise the following.
18 + 11x + x2
Advertisements
उत्तर
We have,
18 + 11x + x2
= x2 + 11x + 18
= x2 + (9 + 2)x + 18
= x2 + 9x + 2x + 18
= x(x + 9) + 2(x + 9)
= (x + 9)(x + 2)
APPEARS IN
संबंधित प्रश्न
Simplify (m2 − n2m)2 + 2m3n2
Using identities, evaluate 9982
Using identities, evaluate 297 × 303
Use the formula to multiply the following.
(a + 6) (a − 6)
Use the formula to multiply the following.
`(x/5+6)(x/5-6)`
Factorise the following using suitable identity
a2 + 6ab + 9b2 – c2
(a + b)2 – 2ab = ______ + ______.
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
`9x^2 + 2xy + y^2/9`
Factorise the following.
y2 + 7y + 12
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.
