Advertisements
Advertisements
Question
Use an expansion formula to find the value.
(102)2
Advertisements
Solution
It is known that (a + b)2 = a2 + 2ab + b2 and (a − b)2 = a2 − 2ab + b2
(102)2
= (100 + 2)2
= (100)2 + 2 × 100 × 2 + (2)2
= 10000 + 400 + 4
= 10404
RELATED QUESTIONS
Use a suitable identity to get the following products.
(x + 3) (x + 3)
Use a suitable identity to get the following products
(2a − 7) (2a − 7)
Use a suitable identity to get the following products.
(1.1m − 0.4) (1.1 m + 0.4)
Which of the options given below is the square of the binomial `(8-1/"x")`?
Expand:
(10 + y)2
Expand: (2x + 3y)2
Factorise the following using suitable identity
36m2 + 60m + 25
Factorise the following using suitable identity
a2 + 6ab + 9b2 – c2
Factorise p4 + q4 + p2q2.
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.
