Advertisements
Advertisements
प्रश्न
Using (x + a) (x + b) = x2 + (a + b) x + ab, find 103 × 104
Advertisements
उत्तर
103 × 104 = (100 + 3) (100 + 4)
= (100)2 + (3 + 4) (100) + (3) (4)
= 10000 + 700 + 12 = 10712
संबंधित प्रश्न
Use a suitable identity to get the following products.
(6x − 7) (6x + 7)
Find the following squares by suing the identities.
(6x2 − 5y)2
Use an expansion formula to find the value.
(97)2
Use the formula to multiply the following.
`(x/5+6)(x/5-6)`
Factorise the following expressions
x2 + 14x + 49
Factorise the following using suitable identity
y2 + 20y + 100
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
9x2 + 24x + 16
Factorise the following.
p2 + 14p + 13
The area of a square is 9x2 + 24xy + 16y2. Find the side of the square.
Verify the following:
(a + b)(a + b)(a + b) = a3 + 3a2b + 3ab2 + b3
