Advertisements
Advertisements
प्रश्न
Simplify:
(4.5a + 1.5b)2 + (4.5b + 1.5a)2
Advertisements
उत्तर
We have,
(4.5a + 1.5b)2 + (4.5b + 1.5a)2 = (4.5a)2 + (1.5b)2 + 2 × 4.5a × 1.5b + (4.5b)2 + (1.5a)2 + 2 × 4.5b × 1.5a ...[Using the identity, (a + b)2 = a2 + b2 + 2ab]
= 20.25a2 + 2.25b2 + 13.5ab + 20.25b2 + 2.25a2 + 13.5ab
= 40.5a2 + 4.5b2 + 27ab
APPEARS IN
संबंधित प्रश्न
Simplify the following using the identities: \[\frac{8 . 63 \times 8 . 63 - 1 . 37 \times 1 . 37}{0 . 726}\]
Find the following product: (x + 4) (x + 7)
Find the following product: \[\left( x + \frac{4}{3} \right)\left( x + \frac{3}{4} \right)\]
Find the following product: (x2 + 4) (x2 + 9)
Evaluate the following: 103 × 96
2p is the factor of 8pq
Expand the following, using suitable identities.
`(4/5a + 5/4b)^2`
Using suitable identities, evaluate the following.
(98)2
Using suitable identities, evaluate the following.
(1005)2
Perform the following division:
(x3y3 + x2y3 – xy4 + xy) ÷ xy
