Advertisements
Advertisements
प्रश्न
Expand the following, using suitable identities.
`((4x)/5 + y/4)((4x)/5 + (3y)/4)`
Advertisements
उत्तर
We have,
`((4x)/5 + y/4)((4x)/5 + (3y)/4) = ((4x)/5)^2 + (y/4 + (3y)/4) (4x)/5 + y/4 xx (3y)/4` ...[Using the identity, (x + a)(x + b) = x2 + (a + b)x + ab]
= `16/25x^2 + (4xy)/5 + (3y^2)/16`
APPEARS IN
संबंधित प्रश्न
Simplify the following using the formula: (a − b)(a + b) = a2 − b2: 113 × 87
Simplify the following using the identities: \[\frac{{58}^2 - {42}^2}{16}\]
Find the following product: \[\left( x + \frac{1}{5} \right)(x + 5)\]
Evaluate the following: 102 × 106
On dividing 57p2qr by 114pq, we get ______.
Simplify:
`(7/9 a + 9/7 b)^2 - ab`
Simplify:
(4.5a + 1.5b)2 + (4.5b + 1.5a)2
Using suitable identities, evaluate the following.
(52)2
Using suitable identities, evaluate the following.
(1005)2
Carry out the following division:
51x3y2z ÷ 17xyz
