Advertisements
Advertisements
प्रश्न
Using suitable identities, evaluate the following.
52 × 53
मूल्यांकन
Advertisements
उत्तर
We have,
52 × 53 = (50 + 2)(50 + 3)
= (50)2 + (2 + 3)50 + 2 × 3 ...[Using the identity, (x + a)(x + b) = x2 + (a + b)x + ab]
= 2500 + 250 + 6
= 2756
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 7: Algebraic Expression, Identities and Factorisation - Exercise [पृष्ठ २३३]
APPEARS IN
संबंधित प्रश्न
Show that (9p - 5q)2 + 180pq = (9p + 5q)2
Find the following product: (x − 3) ( x − 2)
Find the following product: \[\left( x + \frac{4}{3} \right)\left( x + \frac{3}{4} \right)\]
Find the following product: (2x2 − 3) (2x2 + 5)
Find the following product: (z2 + 2) (z2 − 3)
Find the following product: \[\left( x + \frac{1}{5} \right)(x + 5)\]
Expand the following:
(−p + 2q + 3r)2
Evaluate the following by using identities:
10013
2p is the factor of 8pq
Using suitable identities, evaluate the following.
(103)2
