Advertisements
Advertisements
प्रश्न
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
x4 – y4
Advertisements
उत्तर
We have,
x4 – y4 = (x2)2 – (y2)2
= (x2 + y2)(x2 – y2)
= (x2 + y2)(x + y)(x – y)
APPEARS IN
संबंधित प्रश्न
Using the identity (a + b)(a – b) = a2 – b2, find the following product
(4 – mn)(mn + 4)
Factorise: 4x2 – 9y2
The pathway of a square paddy field has 5 m width and length of its side is 40 m. Find the total area of its pathway. (Note: Use suitable identity)
Simplify (5x – 3y)2 – (5x + 3y)2
a2 – b2 = (a + b) ______.
(a + b)(a – b) = a2 – b2
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
x4 – 1
Factorise the expression and divide them as directed:
(x3 + x2 – 132x) ÷ x(x – 11)
The sum of (x + 5) observations is x4 – 625. Find the mean of the observations.
Find the value of a, if 9a = 762 – 672
