Advertisements
Advertisements
प्रश्न
Using (x + a) (x + b) = x2 + (a + b) x + ab, find 5.1 × 5.2
Advertisements
उत्तर
5.1 × 5.2 = (5 + 0.1) (5 + 0.2)
= (5)2 + (0.1 + 0.2) (5) + (0.1) (0.2)
= 25 + 1.5 + 0.02 = 26.52
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
Use a suitable identity to get the following products.
(1.1m − 0.4) (1.1 m + 0.4)
Simplify (m2 − n2m)2 + 2m3n2
Using identities, evaluate 1.05 × 9.5
Expand (ax + by)2
Use the formula to find the value.
502 × 498
Expand: (51)2
`(("a" + "b")("a"^3 - "b"^3))/(("a"^2 - "b"^2))` = ___________
Factors of 9x2 + 6xy are
If a + b = 5 and a2 + b2 = 13, then ab = ?
Factorise the following.
18 + 11x + x2
