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.
(2y + 5) (2y + 5)
Use a suitable identity to get the following products.
(7a − 9b) (7a − 9b)
Simplify (a2 − b2)2
Use an expansion formula to find the value.
(997)2
Use the formula to find the value.
97 × 103
Use the formula to find the value.
98 × 102
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
16x2 + 40x + 25
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
2x3 + 24x2 + 72x
The area of a square is 9x2 + 24xy + 16y2. Find the side of the square.
Factorise p4 + q4 + p2q2.
