Advertisements
Advertisements
प्रश्न
Use a suitable identity to get the following products.
(7a − 9b) (7a − 9b)
Advertisements
उत्तर
(7a − 9b) (7a − 9b) = (7a − 9b)2
= (7a)2 − 2(7a)(9b) + (9b)2 [(a − b)2 = a2 − 2ab + b2]
= 49a2 − 126ab + 81b2
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
संबंधित प्रश्न
Use a suitable identity to get the following products
(2a − 7) (2a − 7)
Find the following squares by suing the identities
(xy + 3z)2
Find the following squares by suing the identities
(0.4p − 0.5q)2
Using identities, evaluate 1.05 × 9.5
Which of the options given below is the square of the binomial `(8-1/"x")`?
Use the formula to find the value.
54 × 46
Use a formula to multiply of (2t – 5)(2t + 5)
Evaluate the following, using suitable identity
1032
Factorise the following.
y2 + 18x + 65
Factorise the following.
18 + 11x + x2
