Advertisements
Advertisements
प्रश्न
By how much is 3x3 – 2x2y + xy2 -y3 less than 4x3 – 3x2y – 7xy2 +2y3
Advertisements
उत्तर
We can get the required results by substracting
3x3 – 2x2y + xy2 -y3 from 4x3 – 3x2y – 7xy2 +2y3
= (4x3 – 3x2y – 7xy2 +2y3 ) - (3x3 – 2x2y + xy2 -y3)
= 4x3 – 3x2y – 7xy2 +2y3 - 3x3 + 2x2y - xy2 + y3
= 4x3 - 3x3 – 3x2y + 2x2y – 7xy2 - xy2 +2y3 + y3
= x3 - x2y - 8xy2 + 3y3
APPEARS IN
संबंधित प्रश्न
Subtract: −xy + yz − zx from xy − yz + xz
Subtract: 4x2 - 5x2y + y2 from - 3y2 + 5xy2 - 7x2 - 9x2y
If m = 9x2 - 4xy + 5y2 and n = - 3x2 + 2xy - y2 find: 2m - n
Multiply: - 3m2n + 5mn - 4mn2 and 6m2n
Copy and complete the following multi-plication:
a + b
× a + b
Copy and complete the following multi-plication:
ax - b
× 2ax + 2b2
Evaluate: (5m - 2n)(5m + 2n)(25m2 + 4n2)
Simplify: `"6k"/7 - ("8k"/9 - "k"/3)`
Simplify: `"x" + "x"/2 + "x"/3`
Simplify: `(2"p" + "p"/7) div ("9p"/10 + "4p")`
