Advertisements
Advertisements
प्रश्न
3x + 23x2 + 6y2 + 2x + y2 + ______ = 5x + 7y2.
Advertisements
उत्तर
3x + 23x2 + 6y2 + 2x + y2 + –23x2 = 5x + 7y2.
Explanation:
Let (3x + 23x2 + 6y2 + 2x + y2) + M = 5x + 7y2
⇒ M = (5x + 7y2) – (3x + 23x2 + 6y2 + 2x + y2)
⇒ M = 5x + 7y2 – 3x – 23x2 – 6y2 – 2x – y2 ...[With –ve sign, +ve sign in the bracket will change on opening it]
⇒ M = 5x – 3x – 2x + 7y2 – 6y2 – y2 – 23x2
M = 0 + 0 – 23x2 = –23x2
APPEARS IN
संबंधित प्रश्न
Fill in the blank:
6x2y + 13xy2 – 4x2y + 2xy2 = _______
Add : - 3a + 2b and 3a + b
Add : 4 + x, 5 – 2x and 6x
Simplify: (p – 2q) – (3q – r)
Simplify: - 2x (x + y) + x2
Simplify: 6a – 3 (a + b – 2)
Simplify: `7"a" ["8a" - (11"a" - (12"a" - bar"6a - 5a"))]`
Factorised form of r2 – 10r + 21 is ______.
Factorised form of p2 + 30p + 216 is (p + 18)(p – 12).
Arjun bought a rectangular plot with length x and breadth y and then sold a triangular part of it whose base is y and height is z. Find the area of the remaining part of the plot.
