Advertisements
Advertisements
प्रश्न
Evaluate the following without multiplying:
(95)2
Advertisements
उत्तर
Using(x + y)2
= x2 + 2xy + y2, we get
(95)2
= (100 - 5)2
= (100)2 - 2(100)(5) + (5)2
= 10000 - 1000 + 25
= 9025.
APPEARS IN
संबंधित प्रश्न
Simplify the following
`(7.83 + 7.83 - 1.17 xx 1.17)/6.66`
Evaluate of the following:
933 − 1073
If x = 3 and y = − 1, find the values of the following using in identify:
\[\left( \frac{x}{y} - \frac{y}{3} \right) \frac{x^2}{16} + \frac{xy}{12} + \frac{y^2}{9}\]
If a + b = 7 and ab = 12, find the value of a2 + b2
Mark the correct alternative in each of the following:
If \[x + \frac{1}{x} = 5\] then \[x^2 + \frac{1}{x^2} = \]
Expand the following:
(a + 3b)2
Find the squares of the following:
3p - 4q2
If x + y = 9, xy = 20
find: x - y
If a + b + c = 9 and ab + bc + ca = 26, find a2 + b2 + c2.
Find the following product:
`(x/2 + 2y)(x^2/4 - xy + 4y^2)`
