Advertisements
Advertisements
प्रश्न
If x = 3, y = 2 and z = 1; find the value of 3x2 − 5y2
बेरीज
Advertisements
उत्तर
x = 3, y = 2, z = 1
3x2 − 5y2 = 3(3)2 − 5(2)2
= 3 × 9 − 5 × 4
= 27 − 20
= 7
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
संबंधित प्रश्न
Fill in the blank, when:
x = 3, y = 6, z = 18, a = 2, b = 8, c = 32 and d = 0.
c ÷ b = ...........
Find the value of 6m − 2n − 5p − 3q, when m = 20, n = 10, p = 2 and q = 9
If a = 3, b = 0, c = 2 and d = 1, find the value of abc − bcd + cda
Find the value of 3x3 – 4x2 + 5x – 6, when x = − 1.
State true and false:
The value of x + 5 = 6, when x = 1
If x = 2, y = 5 and z = 4, find the value of the following:
`"xz"/"yz"`
Simplify:
− (− 4a − 8a)
Simplify:
p + (− q − r − s) − (p − q − r)
Simplify:
x − [y + {x − (y + x)}]
Multiply and then evaluate:
(4x + y) and (x – 2y); when x = 2 and y = 1.
