Advertisements
Advertisements
Question
Using a2 − b2 = (a + b) (a − b), find 1532 − 1472
Advertisements
Solution
1532 − 1472 = (153 + 147) (153 − 147)
= (300) (6) = 1800
shaalaa.com
Is there an error in this question or solution?
RELATED QUESTIONS
Use a suitable identity to get the following products.
(6x − 7) (6x + 7)
Expand `("a"/2+"b"/3)^2`
Of which of the binomials given below is m2n2 + 14mnpq + 49p2q2 the expansion?
Expand: (2a – 3b)2
Expand: `("y" - 3/"y")^2`
Expand (3m + 5)2
Factorise the following expressions
x2 + 14x + 49
If a + b = 10 and ab = 18, find the value of a2 + b2
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
a2x2 + 2abxy + b2y2
Factorise the following.
x2 + 15x + 26
