Advertisements
Advertisements
Question
Find the value of : ( 987 )2 - (13)2
Advertisements
Solution
( 987 )2 - (13)2
= ( 987 + 13 )( 987 - 13)
= 1000 x 974
= 974000
APPEARS IN
RELATED QUESTIONS
Find the common factors of the terms.
2x, 3x2, 4
Find the common factors of the terms.
6 abc, 24ab2, 12a2b
Factorise the following expression:
ax2y + bxy2 + cxyz
Factorise.
15pq + 15 + 9q + 25p
Factorise.
z − 7 + 7xy − xyz
Factorize the following:
3x − 9
Factorize the following:
2l2mn - 3lm2n + 4lmn2
Factories by taking out common factors :
xy(3x2 - 2y2) - yz(2y2 - 3x2) + zx(15x2 - 10y2)
Factories by taking out common factors :
ab(a2 + b2 - c2) - bc(c2 - a2 - b2) + ca(a2 + b2 - c2)
Factorise:
`x^2 + 1/(4x^2) + 1 - 7x - 7/(2x)`
Factorise : a - b - 4a2 + 4b2
Factorise : (a2 - 3a) (a2 - 3a + 7) + 10
Factorise : (a2 - a) (4a2 - 4a - 5) - 6
Factorise : 12(3x - 2y)2 - 3x + 2y - 1
Factorise : 3 - 5x + 5y - 12(x - y)2
Factorise : 9x 2 + 3x - 8y - 64y2
Factorise : 4a2 - 8ab
Factorise : x2(a-b)-y2 (a-b)+z2(a-b)
Factorise : (x + y)(a + b) + (x - y)(a + b)
factorise : 35a3b2c + 42ab2c2
Factorise: 36x2y2 - 30x3y3 + 48x3y2
factorise : x2y - xy2 + 5x - 5y
factorise : ab(x2 + y2) - xy (a2 + b2)
Factorise xy2 - xz2, Hence, find the value of :
9 x 82 - 9 x 22
Factorise the following by taking out the common factors:
24m4n6 + 56m6n4 - 72m2n2
Factorise the following by taking out the common factors:
81(p + q)2 -9p - 9q
Factorise:
`4"a"^2 + (1)/(4"a"^2) - 2 - 6"a" + (3)/(2"a")`
