Advertisements
Advertisements
प्रश्न
Factorise xy2 - xz2, Hence, find the value of :
40 x 5.52 - 40 x 4.52
Advertisements
उत्तर
xy2 - xz2 = x(y2 - z2) = x(y - z)(y + z)
40 x 5.52 - 40 x 4.52
= 40 (5.5)2 - (4.5)2
= 40 (5.5 - 4.5) (5.5 + 4.5)
= 40 (1) (10) = 400
APPEARS IN
संबंधित प्रश्न
Factorise the following expression:
− 4a2 + 4ab − 4 ca
Factorize the following:
a4b − 3a2b2 − 6ab3
Factorise : `x^2 + [a^2 + 1]/a x + 1`
Factorise : (a2 - 3a) (a2 - 3a + 7) + 10
Factorise : 9x 2 + 3x - 8y - 64y2
Factorise : 2(ab + cd) - a2 - b2 + c2 + d2
Find the value of : ( 987 )2 - (13)2
Find the value of : `[(18.5)^2 - (6.5)^2]/[18.5 + 6.5]`
Factorise : 17a6b8 - 34a4b6 + 51a2b4
Factorise: 36x2y2 - 30x3y3 + 48x3y2
factorise : x2y - xy2 + 5x - 5y
Factorise:
a2 – ab(1 – b) – b3
factorise : xy2 + (x - 1) y - 1
Factorise: a2 - 0·36 b2
Factorise: a4 - 625
Factorise the following by taking out the common factors:
4x2y3 - 6x3y2 - 12xy2
Factorise the following by taking out the common factors:
5a(x2 - y2) + 35b(x2 - y2)
Factorise the following by taking out the common factors:
12a3 + 15a2b - 21ab2
Factorise:
`y^2 + (1)/(4y^2) + 1 - 6y - (3)/y`
