Advertisements
Advertisements
प्रश्न
Simplify using identities
(3p + q)(3p – q)
उत्तर
(3p + q)(3p – q)
Substitute a = 3p and b = q in
(a + b)(a – b) = a2 – b2, we have
(3p + q)(3p – q) = (3p)2 – q2 = 32p2 – q2
(3P + q)(3p – q) = 9p2 – q2
APPEARS IN
संबंधित प्रश्न
Find the value of (x – y)(x + y)(x2 + y2)
Simplify (5x – 3y)2 – (5x + 3y)2
Using suitable identities, evaluate the following.
9.8 × 10.2
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
28ay2 – 175ax2
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
25ax2 – 25a
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
`x^2/25 - 625`
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
p5 – 16p
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
16x4 – 625y4
Verify the following:
`((3p)/7 + 7/(6p))^2 - (3/7p + 7/(6p))^2 = 2`
Find the value of `(198 xx 198 - 102 xx 102)/96`
