Advertisements
Advertisements
प्रश्न
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
9x2 – (3y + z)2
उत्तर
We have,
9x2 – (3y + z)2 = [(3x)2 – (3y + z)2]
= [3x – (3y + z)][3x + (3y + z)]
= [3x – 3y – z][3x + 3y + z]
APPEARS IN
संबंधित प्रश्न
Choose the right answers from the option:
The difference of the squares, (612 – 512 ) is equal to ______.
The product of (x + 5) and (x – 5) is ____________
Evaluate the following, using suitable identity
297 × 303
672 – 372 = (67 – 37) × ______ = ______.
Using suitable identities, evaluate the following.
(35.4)2 – (14.6)2
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
`(2p^2)/25 - 32q^2`
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
p5 – 16p
Factorise the expression and divide them as directed:
(3x2 – 48) ÷ (x – 4)
The radius of a circle is 7ab – 7bc – 14ac. Find the circumference of the circle. `(pi = 22/7)`
Find the value of a, if pqa = (3p + q)2 – (3p – q)2
