Advertisements
Advertisements
प्रश्न
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
x4 – y4 + x2 – y2
Advertisements
उत्तर
We have,
x4 – y4 + x2 – y2 = (x2)2 – (y2)2 + (x2 + y2)
= (x2 + y2)(x2 – y2) + (x2 – y2)
= (x2 – y2)(x2 + y2 + 1)
= (x + y)(x – y)(x2 + y2 + 1)
APPEARS IN
संबंधित प्रश्न
Choose the right answers from the option:
The difference of the squares, (612 – 512 ) is equal to ______.
Factorise the following expressions
m2 + m – 72
Evaluate the following, using suitable identity
297 × 303
(a + b)(a – b) = a2 – b2
Using suitable identities, evaluate the following.
(729)2 – (271)2
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
9x2 – 1
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
1331x3y – 11y3x
The sum of (x + 5) observations is x4 – 625. Find the mean of the observations.
Find the value of a, if pqa = (3p + q)2 – (3p – q)2
Find the value of `(198 xx 198 - 102 xx 102)/96`
