Advertisements
Advertisements
प्रश्न
Expand the following, using suitable identities.
`(2/3x - 3/2y)^2`
Advertisements
उत्तर
We have,
`(2/3x - 3/2y)^2 = (2/3 x)^2 + (3/2 y)^2 - 2 xx 2/3 x xx 3/2 y` ...[Using the identity, (a – b)2 = a2 + b2 – 2ab]
= `4/9 x^2 + 9/4 y^2 - 2xy`
APPEARS IN
संबंधित प्रश्न
Simplify the following using the formula: (a − b)(a + b) = a2 − b2: (467)2 − (33)2
Simplify the following using the formula: (a − b)(a + b) = a2 − b2: (79)2 − (69)2
Find the value of x, if 4x = (52)2 − (48)2.
Find the following product: (2x2 − 3) (2x2 + 5)
Evaluate the following: 34 × 36
Multiply the following:
(3x2 + 4x – 8), (2x2 – 4x + 3)
Simplify:
(x2 – 4) + (x2 + 4) + 16
Simplify:
(a – b) (a2 + b2 + ab) – (a + b) (a2 + b2 – ab)
Expand the following, using suitable identities.
(xy + yz)2
Expand the following, using suitable identities.
(x2y – xy2)2
