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प्रश्न
Simplify combining like terms: 5x2y − 5x2 + 3y x2 − 3y2 + x2 − y2 + 8xy2 −3y2
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उत्तर
5x2y - 5x2 + 3yx2 - 3y2 + x2 - y2 + 8xy2 − 3y2
= 5x2y + 3yx2 - 5x2 + x2 - 3y2 - y2 - 3y2 + 8xy2
= x2y (5 + 3) + x2 (-5 + 1) + y2(-3 - 1 -3) + 8xy2
= 8x2y - 4x2 - 7y2 + 8xy2
संबंधित प्रश्न
Add: 5m - 7n, 3n - 4m + 2, 2m - 3mn - 5
Subtract: -m2 + 5mn from 4m2 - 3mn + 8
Simplify: p + p + 2 + p + 3 + p – 4 – p – 5 + p + 10
Add:
7a2bc, –3abc2, 3a2bc, 2abc2
Add:
5x2 – 3xy + 4y2 – 9, 7y2 + 5xy – 2x2 + 13
Multiply the following:
(ab + c), (ab + c)
Add the following expressions:
p2 – q + r, q2 – r + p and r2 – p + q
Add the following expressions:
`5/8p^4 + 2p^2 + 5/8; 1/8 - 17p + 9/8p^2` and `p^5 - p^3 + 7`
How much is y4 – 12y2 + y + 14 greater than 17y3 + 34y2 – 51y + 68?
At age of 2 years, a cat or a dog is considered 24 “human” years old. Each year, after age 2 is equivalent to 4 “human” years. Fill in the expression [24 + 
(a – 2)] so that it represents the age of a cat or dog in human years. Also, you need to determine for what ‘a’ stands for. Copy the chart and use your expression to complete it.
| Age | [24 +  (a – 2)] |
Age (Human Years) |
| 2 | ||
| 3 | ||
| 4 | ||
| 5 | ||
| 6 |
